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LabVIEW

LabVIEW (Laboratory Virtual Instrument Engineering Workbench) is a graphical programming environment and system-design platform developed by National Instruments (now part of Emerson) for engineers and scientists to create applications involving test, measurement, and control.^[1] It employs a visual programming language known as G, where programs are constructed using drag-and-drop block diagrams rather than traditional text-based code, enabling rapid development of virtual instruments that simulate physical laboratory equipment.^[2] First released in 1986 for the Apple Macintosh, LabVIEW was designed to simplify data acquisition, instrument control, and automated testing by providing intuitive tools for hardware integration and analysis.^[3] Key features of LabVIEW include seamless connectivity to diverse hardware instruments from various vendors, built-in libraries with thousands of engineering-specific functions for signal processing, data visualization, and control algorithms, and native support for user interfaces that mimic physical instrument panels.^[1] It supports integration with other programming languages such as Python, C, and .NET, allowing hybrid development workflows, and incorporates modern enhancements like the Nigel AI Advisor for providing contextual coding assistance.^[1] These capabilities make LabVIEW particularly suited for applications in industries like aerospace, automotive, and manufacturing, where it accelerates development cycles— for instance, enabling up to 9x faster development times and 80% code reuse in production validation systems.^[1] Since its inception, LabVIEW has evolved through regular updates, with major versions aligning to annual releases starting around 2005, incorporating advancements in real-time processing, embedded systems deployment, and cloud integration.^[4] Created by engineer Jeff Kodosky at National Instruments, it originated from the need for more accessible instrumentation software in the mid-1980s, growing from an initial Macintosh-exclusive tool to a cross-platform solution supporting Windows, Linux, and real-time operating systems.^[3] Today, LabVIEW remains a cornerstone for research and industrial automation, with licensing options including perpetual and subscription models that bundle maintenance and training resources.^[1]

History and Development

Origins and Early Development

LabVIEW was developed by National Instruments (NI), a company founded in 1976 in Austin, Texas, with the project beginning in 1983 under the leadership of software engineer Jeff Kodosky.^[5] The initiative, initially codenamed "G," aimed to create a graphical programming environment that would allow engineers and scientists to design and control test and measurement systems more intuitively than traditional text-based coding.^[5] This effort was inspired by the emerging graphical user interfaces of personal computers, particularly the Apple Macintosh, to address the complexities of instrument control in laboratory settings.^[6] The first public release, LabVIEW 1.0, occurred in October 1986 exclusively for the Apple Macintosh platform, marking NI's flagship product and introducing the concept of virtual instruments (VIs)—software representations of physical hardware that simplified data acquisition and analysis.^[6] The original goal was to empower test engineers in electronics and automation industries, who often lacked extensive programming expertise, by enabling them to build applications through visual block diagrams rather than lines of code.^[7] A key feature of this initial version was its native integration with the General Purpose Interface Bus (GPIB), allowing direct communication with laboratory instruments like oscilloscopes and multimeters via Macintosh-compatible hardware interfaces.^[8] LabVIEW's foundational concepts centered on the G programming language, a dataflow-based graphical system where programs were constructed by wiring together functional nodes on a block diagram editor, promoting a more accessible paradigm for engineering workflows.^[5] By 1992, with the release of LabVIEW 2.5, the software expanded to Microsoft Windows and Sun Microsystems workstations, broadening its accessibility beyond the Macintosh and accelerating adoption in diverse engineering environments.^[6] This early development established LabVIEW as a pivotal tool for simplifying instrument control and fostering innovation in test and measurement applications.

Release History and Version Evolution

LabVIEW's release history from the mid-2000s onward reflects a progression toward enhanced project management, concurrency tools, integration with modern languages, and more frequent updates to support evolving development needs. In 2005, LabVIEW 8.0 introduced the Project Explorer for improved organization of large applications.^[9] Subsequent releases built on these foundations with a focus on advanced programming paradigms. LabVIEW 2012 integrated the Actor Framework, a design pattern for building concurrent, scalable applications using message-passing actors, which was first presented at NI Week in 2010.^[10]^[11] This framework simplified multithreaded development without explicit locks or synchronization. Later, LabVIEW 2018 added the Python Node, enabling direct calls to Python scripts within graphical programs for seamless integration of data science and machine learning workflows.^[12]^[13] The evolution accelerated in the 2020s with a shift to more agile delivery. LabVIEW 2020 marked a transition toward modular updates, but full quarterly releases began in 2022 with LabVIEW 2022 Q3, allowing faster iteration on user-requested features like improved VI comparison and Python object support.^[14] By 2025, this cadence continued: LabVIEW 2025 Q1, released in January, provided full .NET 8.0 integration for loading and executing assemblies alongside Python 3.11 and 3.12 compatibility.^[14] LabVIEW 2025 Q3, released in June, introduced the Nigel AI Advisor for automated code suggestions and a unified Debug window that merges probes and breakpoints for streamlined troubleshooting.^[14] Edition developments paralleled these core updates, expanding accessibility and deployment options. LabVIEW NXG, launched in 2017 with a focus on web-based user interfaces and modular development, reached its final version, NXG 5.1, in January 2021, emphasizing cross-platform web applications before development ceased.^[15] In April 2020, NI introduced the LabVIEW Community Edition, a free version for non-commercial use that includes core graphical programming tools and G Web Development Software, broadening adoption among students and hobbyists.^[3] Corporate changes influenced but did not disrupt this trajectory. In 2023, Emerson acquired NI for $8.2 billion, rebranding the organization under Emerson's Test & Measurement segment while maintaining Austin, Texas, as headquarters; release cycles remained quarterly, with ongoing investment in LabVIEW's ecosystem.^[16]^[17] Key trends in LabVIEW's version evolution include the 2022 shift to quarterly releases for rapid feature delivery and a sustained emphasis on cross-platform scalability, supporting development and deployment on Windows, Linux, and embedded targets like real-time controllers via the LabVIEW Real-Time Module.^[18]^[19]^[20]

Programming Fundamentals

Dataflow Programming Paradigm

LabVIEW employs a dataflow programming paradigm, in which the execution of program nodes—representing functional code blocks—occurs only when all required input data becomes available, thereby driving the overall program flow through data dependencies rather than sequential instructions.^[21] This model contrasts with traditional control-flow languages, where execution follows the written order of statements, and instead enables automatic determination of operational sequences based on data readiness.^[21] In this paradigm, data streams are represented by wires that connect nodes on the block diagram, the visual backend of LabVIEW programs; these wires carry data from the outputs of one node to the inputs of subsequent nodes, establishing dependencies that dictate execution order independently of the spatial or written arrangement of the code.^[21] Unconnected nodes or independent branches can execute concurrently, as the system identifies and schedules parallelizable operations without developer intervention.^[22] For instance, in a simple data acquisition virtual instrument (VI), a node for reading sensor data must complete and provide its output before a connected processing node activates, ensuring that analysis proceeds only upon data arrival and preventing premature execution.^[21] The dataflow approach offers key advantages, including inherent support for implicit parallelism that leverages multithreading without requiring explicit synchronization code, thus reducing the likelihood of race conditions common in manually threaded programs.^[22] It also promotes modularity by facilitating the creation of reusable VIs, where data inputs and outputs clearly define interfaces, simplifying integration and maintenance in larger applications.^[22] Additionally, automatic memory management tied to dataflow minimizes allocation errors, as memory for data on wires is handled dynamically during execution.^[21] Historically, LabVIEW's dataflow paradigm draws from foundational concepts in parallel computing developed in the 1960s and 1970s, such as those pioneered at MIT, but was adapted and simplified for graphical implementation upon the software's initial release in 1986 to suit instrument control and measurement tasks.^[23] This integration from inception allowed LabVIEW to prioritize data-driven efficiency over imperative sequencing, evolving into a core strength for real-time and embedded systems.^[23]

Graphical Programming Environment

LabVIEW's graphical programming environment centers on two primary views: the front panel and the block diagram, which together enable users to build applications visually using the G programming language. The front panel serves as the user interface, where controls—such as buttons, knobs, and numeric inputs—allow users to supply data to the program, while indicators—like graphs, LEDs, and numeric displays—output results from computations. These elements are placed via drag-and-drop from the Controls palette, accessible by right-clicking the front panel, and can be customized through properties dialogs to adjust appearance, data types (e.g., numeric, Boolean, string), and behaviors like adding scroll bars. Changes to front panel objects automatically generate corresponding terminals on the block diagram, ensuring seamless integration between the interface and underlying logic.^[24] The block diagram represents the program's source code in a visual, dataflow-based format, where nodes—icons for functions, subVIs, or structures—perform operations, and wires connect them to define data pathways. Wires, which appear as colored lines matching data types (e.g., thick for scalars, thin for Booleans), transfer data from output terminals of one node to input terminals of another, with execution occurring implicitly when data arrives at all inputs of a node. Terminals link the block diagram to the front panel: control terminals (with thick borders) receive input data, while indicator terminals (thin borders) send output data, allowing bidirectional updates during runtime. Users access nodes from palettes, such as the Functions palette for built-in operations like arithmetic or file I/O, by dragging them onto the diagram and wiring connections to establish the program's flow. This visual wiring enforces the dataflow paradigm, where program execution follows data dependencies rather than sequential lines of text code.^[25] The programming workflow in LabVIEW emphasizes modularity and reusability, beginning with designing the front panel to define inputs and outputs, followed by implementing logic on the block diagram. Developers drag functions and subVIs from palettes, wire them to form executable diagrams, and use tools like the Wiring tool to create or reroute connections. SubVIs, which encapsulate reusable sections of code, are created by selecting a block diagram portion with the Positioning tool, then choosing Edit > Create SubVI to generate a new VI with an automatically configured connector pane for inputs and outputs; this subVI then appears as a single node on the parent diagram, promoting hierarchical design. The icon for a subVI, editable on its front panel, provides a compact visual representation, and the connector pane maps terminals to wires for integration. This drag-and-wire process, supported by automatic error checking for unwired terminals, streamlines development without requiring textual syntax.^[26]^[27] Central to this environment is the G programming language, a non-textual, icon-based system that visually represents algorithms through interconnected nodes rather than written code, making it accessible for engineers focused on test and measurement tasks. G's graphical nature aids in translating conceptual workflows into executable diagrams, with built-in support for custom controls—user-defined front panel elements—and templates for rapid prototyping of common interfaces. Unlike text-based languages, G avoids syntax errors from typing, instead relying on visual cues like wire colors and node shapes for debugging and documentation.^[28]^[29] Since its inception in 1986 with LabVIEW 1.0, the graphical environment has evolved from basic 2D block diagrams limited to simple wiring and functions in early versions before 2000, to a sophisticated system incorporating advanced visual tools in modern releases. Contemporary LabVIEW supports features like 3D graphs and picture controls for enhanced data visualization directly on front panels and diagrams, allowing immersive representations of complex datasets such as surface plots or interactive scenes. These developments, building on the core graphical foundation, maintain G's focus on intuitive, visual program construction while expanding capabilities for multidimensional applications.^[23]^[30]

Common Design Patterns

In LabVIEW, design patterns provide reusable architectures for structuring graphical code to address recurring software challenges, such as managing sequential operations, decoupling data processing, and ensuring responsive user interfaces. These patterns leverage the dataflow paradigm through structures like while loops, case structures, and queues to promote modularity and maintainability.^[31] The state machine pattern is a fundamental approach for implementing sequential logic with conditional cases, often used in applications requiring ordered execution of tasks, such as test sequences or control flows. It typically consists of a while loop enclosing a case structure driven by an enumerated type shift register to track the current state, with transitions updating the state value at the loop's end. This pattern supports optional integration with event structures for handling user inputs, enabling efficient management of both timed and asynchronous behaviors without blocking the main execution thread.^[32]^[31] The producer-consumer pattern decouples data production from processing by using queues to buffer items between parallel loops running at different rates, ideal for data-intensive applications like acquisition and analysis where one loop generates data (producer) and another consumes it without synchronization issues. Implementation involves the producer loop enqueueing data via the Obtain Queue and Enqueue Element VIs, while the consumer loop dequeues using Dequeue Element in a timed while loop, ensuring thread-safe communication and preventing data loss during bursts.^[33]^[31] Event-driven programming extends these patterns by responding asynchronously to user interface or programmatic events, such as button presses or timeouts, to maintain application responsiveness in interactive scenarios. It employs an event structure within a while loop to execute code only when specified events occur, often combined with the queued message handler (QMH) variant—a producer-consumer extension using an event structure in the producer loop for UI events and queues for inter-loop messaging. The QMH facilitates robust error handling by centralizing message processing in a case structure, where messages (e.g., enums or clusters) trigger actions like data updates or state changes. Notifiers can supplement queues for simple synchronization in lighter scenarios.^[34]^[31]^[35] Best practices for these patterns emphasize modularity through subVIs to encapsulate reusable logic, such as wrapping state transition code or queue operations, which reduces diagram complexity and eases debugging. To avoid race conditions, patterns enforce single-writer rules for shared data structures like queues or functional global variables, while reentrant VIs enable safe parallel execution. These approaches are particularly valuable in data-intensive applications for preserving UI responsiveness, as event-driven elements prevent long-running operations from freezing front panels.^[31]^[36] An advanced variant, the Actor Framework, introduced at NIWeek 2010 and integrated into LabVIEW since 2012, applies object-oriented principles to concurrency by modeling independent actors that communicate via asynchronous messages, building on QMH for scalable, modular systems in complex, multi-threaded environments.^[10]^[37]

Core Features

Device Interfacing and Data Acquisition

LabVIEW's device interfacing and data acquisition capabilities form a cornerstone of its virtual instrumentation paradigm, enabling users to connect software directly to hardware for real-time measurement and control.^[38] Originating as a key feature with LabVIEW's release in 1986, these tools were designed to replace traditional standalone instruments with programmable, PC-based systems that integrate data acquisition hardware with graphical programming.^[38] At the core of LabVIEW's data acquisition for National Instruments (NI) hardware is the NI-DAQmx driver, which provides comprehensive control over every aspect of a DAQ system, from signal conditioning and channel configuration to programming and execution within the LabVIEW environment.^[39] For broader instrument control, the NI-VISA library serves as an industry-standard interface, supporting communication over multiple buses including GPIB, USB, Ethernet/LXI, serial (RS232/RS485), VXI, and PXI.^[40] These tools allow seamless integration of NI DAQ devices, such as multifunction I/O cards, with LabVIEW applications for tasks like voltage measurement or digital signal generation.^[41] LabVIEW supports key industrial protocols for device communication, including SCPI for standard instrument commands via VISA, Modbus for connecting to PLCs and sensors through high-level I/O servers or low-level libraries, and OPC UA via dedicated toolkits for secure, platform-independent data exchange.^[42]^[40] Practical examples include using VISA to trigger an oscilloscope over Ethernet for waveform capture or polling temperature sensors via Modbus TCP to monitor environmental conditions in real time.^[43] The typical workflow in LabVIEW for data acquisition begins with configuring measurement channels using DAQmx tasks to specify parameters like sampling rate, voltage range, and input type, followed by initiating signal acquisition through high-level Express VIs or low-level DAQmx functions.^[41] Acquired signals can then be processed inline, such as applying a low-pass filter using built-in signal processing functions to remove noise while preserving relevant frequency components.^[44] For advanced applications, LabVIEW enables real-time data streaming from DAQ hardware to embedded targets like FPGAs or CompactRIO (cRIO) controllers, utilizing DMA FIFOs to transfer high-throughput data between the FPGA and real-time processor without host intervention.^[45] Integration with third-party devices is facilitated through DLL calls via LabVIEW's Call Library Function node, allowing custom drivers or APIs to extend compatibility beyond NI hardware on real-time systems.^[46] This dataflow-driven approach ensures deterministic execution for time-critical interfacing tasks.^[41]

Code Compilation and Execution

LabVIEW employs a sophisticated compilation process to translate its graphical G code—representing programs as block diagrams with interconnected nodes—into executable machine code, enabling efficient execution on various hardware platforms. The process begins with type propagation to infer data types across the diagram, followed by conversion to a Data Flow Intermediate Representation (DFIR), a high-level graph-based format introduced in LabVIEW 2009 that preserves the inherent parallelism of G code for optimizations such as loop-invariant code motion. This DFIR is then transformed into LLVM Intermediate Representation (IR), adopted since LabVIEW 2010, which facilitates advanced low-level optimizations like instruction scheduling before just-in-time (JIT) compilation generates native machine code directly in memory using the LLVM framework.^[23] Unlike early versions that relied on an interpretive mode, modern LabVIEW defaults to full compilation, eliminating the need for an explicit compile button; users simply run the virtual instrument (VI) to trigger JIT compilation on demand.^[23] Execution in LabVIEW operates in distinct modes tailored to development and deployment needs. During development, VIs run in an interpretive-like manner with JIT compilation for rapid iteration, allowing real-time feedback while maintaining compiled performance for active segments. For deployment, LabVIEW builds standalone executables (EXEs), dynamic link libraries (DLLs), or embedded applications by compiling the entire hierarchy of VIs into native binaries, stripping debugging symbols to optimize size and speed. This compiled mode supports distribution without requiring the full LabVIEW development environment on the target machine, relying instead on the LabVIEW Run-Time Engine (RTE), a lightweight set of libraries that handles core execution functions including VI loading and basic I/O. The RTE ensures compatibility across versions, though behavioral differences may arise between major releases, and it enables running built applications on systems without LabVIEW installed.^[23]^[47]^[48] The runtime engine forms the backbone of LabVIEW execution, managing critical aspects such as memory allocation and error handling to ensure robust operation. It automatically oversees data flow semantics, where execution proceeds node-by-node as inputs become available, while employing inplaceness optimizations to minimize data copying by reusing memory buffers for compatible operations. Error propagation occurs through dedicated error cluster wires—typically rendered in orange to distinguish them from scalar (blue), Boolean (green), or string (pink) wires—allowing errors to flow downstream and halt non-essential execution paths via automatic case structures or error-handling VIs. If an error arises, the engine suspends execution, highlights the offending node, and displays a dialog with details, promoting reliable program flow without manual intervention in simple cases. This mechanism supports standalone applications by encapsulating all necessary runtime behaviors within the built executable or RTE.^[47]^[49]^[50] LabVIEW's cross-platform capabilities extend to compilation and deployment, supporting development on Windows, Linux, and macOS while targeting diverse runtime environments including real-time operating systems (RTOS) via the LabVIEW Real-Time Module and field-programmable gate arrays (FPGAs) through the LabVIEW FPGA Module. Cross-compilation allows building applications for RTOS targets like those on CompactRIO hardware or FPGA bitfiles from a host machine, with the compiler generating platform-specific binaries that leverage the RTE or specialized engines for deterministic execution. Debugging tools integrate seamlessly across these platforms, featuring execution highlighting—which animates data flow with colored bubbles moving along wires to visualize timing and dependencies—and the Probe tool for inspecting wire values at runtime. Probes can be attached to wires or nodes during single-stepping or breakpoint sessions, revealing data states without altering code, while execution highlighting aids in tracing issues in complex diagrams. These tools operate in both development and deployed modes where supported, enhancing portability without sacrificing debuggability.^[23]^[51]^[52] Performance in LabVIEW benefits from targeted optimizations during compilation, particularly subVI inlining, which embeds the compiled code of a subVI directly into its caller to eliminate call overhead—typically tens of microseconds per invocation—yielding measurable speedups for frequently called or loop-contained routines. To enable inlining, developers select the option in the subVI's properties under the Execution category, often paired with preallocated clone reentrant execution for thread safety; the compiler then integrates the code during JIT, applying global optimizations like dead code elimination. This approach, combined with LLVM's enhancements since 2010, has reduced average VI execution times by about 20% in benchmarks, though it increases initial compilation duration as changes propagate to callers. Recent iterations, including LabVIEW 2025 Q3, further refine build processes by defaulting source distributions to compiled code settings, streamlining deployment efficiency.^[53]^[23]^[54]

Built-in Libraries and Toolkits

LabVIEW provides an extensive collection of built-in libraries accessible via the Functions palette, enabling users to perform complex computations without custom coding. The Analysis library includes tools for signal processing, such as VIs for signal generation, digital filtering, data windowing, and spectrum analysis, including Fast Fourier Transform (FFT) algorithms for frequency-domain analysis.^[55] The Mathematics library supports a range of operations, including matrix manipulations, linear algebra solvers, and elementary functions for interfacing real-world measurements with mathematical models.^[55] Additionally, the Vision library incorporates IMAQdx functions for image acquisition and basic processing, facilitating tasks like camera interfacing and simple image manipulation within graphical programs.^[55] Beyond core libraries, LabVIEW offers specialized toolkits as add-ons to extend functionality for domain-specific applications. The Control Design and Simulation Module enables simulation of dynamic systems, controller design, and deployment to real-time hardware, featuring PID controllers for feedback control and tools for system identification.^[56] The DataFinder Toolkit integrates search capabilities for managing and querying test data files, allowing users to index, search, and retrieve properties from large datasets efficiently.^[57] The Analytics and Machine Learning Toolkit, introduced in the early 2010s and enhanced throughout the 2020s, supports model training for predictive analytics, including algorithms for anomaly detection, classification, clustering, and pattern recognition on Windows and NI Linux Real-Time targets.^[58] These libraries and toolkits integrate seamlessly with LabVIEW's base environment, which contains hundreds of pre-built VIs and functions organized by category, alongside add-ons like SystemLink for centralized fleet management of test assets, software deployment, and data optimization across distributed systems.^[55]^[59] In the 2025 Q3 release, enhancements to AI/ML workflows were introduced via the NI Nigel AI Advisor, providing integrated assistance for test development, code analysis, and optimization, with support for leveraging pre-trained models in measurement applications.^[54] Users access these resources through drag-and-drop placement from palettes onto block diagrams, allowing easy incorporation into dataflow-based programs, while the environment supports extension through custom libraries for tailored functionality.^[60]

Parallel and Multithreaded Programming

LabVIEW leverages its dataflow programming paradigm to enable automatic parallelism, where independent nodes or sections of a block diagram execute concurrently as soon as their input data becomes available, without requiring explicit thread management from the developer. This inherent concurrency allows multiple operations to run simultaneously on multicore processors, improving performance for tasks like signal processing or simulations.^[61] For explicit control over parallelism and multithreading, LabVIEW provides synchronization primitives such as semaphores, queues, and occurrences to manage shared resources and coordinate tasks. Semaphores protect critical code sections, ensuring only one thread accesses them at a time to prevent race conditions. Queues facilitate thread-safe data exchange between parallel loops or VIs, supporting producer-consumer patterns where one loop acquires data while another processes it. Occurrences enable event-based signaling, allowing threads to wait for notifications from other parts of the application before proceeding.^[62]^[63]^[64] The LabVIEW Real-Time Module extends these capabilities for deterministic execution in embedded systems, using timed loops and priority-based scheduling to guarantee predictable timing on real-time operating systems. This module supports multithreading with automatic load balancing across multiple CPUs via RT Extensions for Symmetric Multiprocessing (SMP), distributing tasks to optimize resource utilization. Additionally, the LabVIEW Multicore Analysis and Sparse Matrix Toolkit offers multithreaded libraries for compute-intensive operations like matrix computations, aiding in load balancing for parallel data analysis.^[65]^[66]^[67] Key techniques for implementing parallelism include configuring For Loops with auto-indexing and parallel instances, which split array processing across multiple threads for faster execution on multiprocessor systems. Developers can specify the number of parallel instances and chunk sizes to tune performance, ensuring iterations remain independent to avoid synchronization overhead. Rendezvous functions provide barrier synchronization, where multiple parallel tasks wait until all reach a designated point before continuing, useful for coordinated computations like parallel simulations.^[68]^[69]^[64] LabVIEW addresses challenges in multithreaded programming, such as thread-safe data sharing, through multithread-safe functions that prevent data corruption by serializing access without blocking, and reentrant VIs that maintain separate data copies per invocation. Queues and notifiers further ensure safe inter-thread communication, minimizing conflicts in shared memory scenarios. In 2025, enhancements in LabVIEW integration with GPU toolkits, such as Ngene and G²CPU, improved offloading of parallel computations to graphics processing units, enabling accelerated processing for large datasets without deep hardware expertise.^[70]^[64]^[71] A common example is parallel data processing in acquisition loops, where a producer loop continuously acquires data from hardware using queues to pass samples to one or more consumer loops for real-time analysis, such as filtering or FFT computation, ensuring non-blocking operation across threads. This pattern scales efficiently on multicore systems, reducing latency in applications like test automation.^[72]^[64]

Ecosystem and Community

Integrated Development Ecosystem

LabVIEW integrates seamlessly with National Instruments (NI) hardware platforms such as PXI modular instrumentation systems and CompactRIO (cRIO) controllers, enabling rapid prototyping and deployment of measurement and control applications. PXI provides a high-performance chassis for scalable test systems, where LabVIEW serves as the primary programming environment to configure modules for automated testing and data acquisition. Similarly, cRIO targets embedded applications with its rugged, real-time architecture, allowing LabVIEW code to run directly on the controller for edge computing tasks like industrial monitoring. On the software side, LabVIEW complements tools like TestStand for test sequence management and execution, which orchestrates LabVIEW modules in automated validation workflows, and VeriStand for hardware-in-the-loop (HIL) simulation, where LabVIEW Real-Time modules model dynamic systems integrated with physical hardware.^[73]^[74]^[75]^[76] For enterprise and cloud-scale operations, LabVIEW connects to SystemLink, a cloud-based platform for centralized device management, data aggregation, and analytics across distributed test assets, facilitating remote monitoring and asset health insights. FlexLogger enhances this by offering configuration-based data logging and visualization without extensive programming, integrating with SystemLink to publish sensor data and project backups to remote servers for scalable testing in industrial environments. Cross-language capabilities further extend LabVIEW's interoperability through dedicated nodes: the .NET Constructor and Invoke Nodes for calling .NET assemblies, the Call Library Function Node for interfacing with C/C++ DLLs, and the Python Node for embedding Python scripts directly in VIs. LabVIEW 2025 Q1 introduced support for Python 3.12, alongside continued compatibility with versions 3.9 through 3.11, enabling hybrid workflows that leverage Python's data science libraries within graphical programs.^[77]^[78]^[79]^[80]^[12]^[81] Deployment options in LabVIEW support standalone executables to edge devices like cRIO for real-time control and add-ons for cloud platforms such as AWS and Azure, where APIs enable data upload from LabVIEW applications to cloud services for storage and processing. Version control integration with SVN and Git is built into the LabVIEW IDE, allowing project versioning, branching, and CI/CD pipelines to manage graphical code alongside traditional text-based repositories. Following Emerson's 2023 acquisition of NI, the ecosystem has emphasized industrial IoT expansions, with LabVIEW positioned as a core enabler for connecting edge devices to cloud analytics via protocols like MQTT and OPC UA, driving scalable automation solutions.^[82]^[83]^[84]^[16]^[85]

User Community and Support Resources

LabVIEW has cultivated a global user community comprising millions of engineers and scientists who have employed the software for test, measurement, and control applications since its release in 1986. The NI Community forums stand as a central platform for this network, hosting over 1.25 million posts in the LabVIEW section alone, where users exchange solutions, troubleshoot issues, and collaborate on projects.^[86]^[87] Official support resources encompass extensive documentation on the NI website, covering everything from core concepts to advanced implementation. The NI Example Finder integrates directly into LabVIEW, offering searchable access to hundreds of built-in and contributed example virtual instruments (VIs) that demonstrate practical coding techniques and hardware integrations. Certification programs further bolster professional development, including the Certified LabVIEW Developer (CLD) exam, which assesses the ability to design efficient, modular applications, and the Certified LabVIEW Architect (CLA) exam, the highest-level credential validating expertise in large-scale system architecture and project management.^[88]^[89]^[90] Annual events like NIWeek, the flagship conference initiated in 1995, draw thousands of attendees to Austin, Texas, for keynotes, hands-on workshops, and networking opportunities focused on emerging trends in graphical programming and automation. Complementing this are local user groups, which facilitate regional meetups to discuss best practices and innovations, and the LabVIEW Champions program, which honors select community members for their leadership, mentorship, and contributions to enhancing the platform's usability and adoption.^[6]^[91]^[92] Community contributions extend to the VI Package Manager (VIPM), a tool for distributing user-created content, including example VIs that users submit to illustrate specific functionalities like data acquisition or signal processing, thereby accelerating learning and reuse across projects. The 2025 release of the Nigel AI Advisor, an integrated assistant providing real-time guidance on code development and debugging, draws on community input from forums and events to refine its recommendations and align with user workflows.^[93]^[94] Growth in the user base has been propelled by free editions such as the LabVIEW Community Edition, which grants unrestricted access to core features for non-commercial use and has significantly boosted adoption in academic settings, where it supports curriculum in engineering disciplines like electronics and control systems.^[95]

Repositories, Libraries, and Open-Source Contributions

The primary platform for distributing user-contributed LabVIEW libraries is the VI Package Manager (VIPM), developed by JKI and bundled with LabVIEW since version 2012, which facilitates browsing, downloading, and managing over 4,000 add-ons through the NI Tools Network.^[96]^[97]^[98]^[99] Additionally, GitHub hosts numerous repositories under the NI organization, including tools for memory management and measurement plug-ins, while the LabVIEW-Open-Source organization maintains 43 repositories focused on graphical open-source projects.^[100]^[101] Key community contributions include the OpenG Libraries, an open-source collection of reusable virtual instruments (VIs) for utilities such as application control, array operations, error handling, and file management, distributed via VIPM and SourceForge.^[102]^[103] Community-driven drivers extend LabVIEW's hardware support to niche devices, with third-party add-ons available through the NI Tools Network for instruments not covered by official NI drivers.^[104]^[105] The introduction of LabVIEW Community Edition in 2018 marked a shift toward open-source accessibility, providing a free version for non-commercial use that encourages code sharing without licensing restrictions, exemplified by the open-source Actor Framework repository on GitHub, which implements the actor model for asynchronous, message-oriented applications.^[106]^[107] Library management in LabVIEW employs semantic versioning for packages, following conventions like MAJOR.MINOR.PATCH to indicate compatibility and changes, often automated in continuous integration pipelines.^[108]^[109] These libraries integrate seamlessly with LabVIEW's Project Explorer window, which supports source code control providers like Git for organizing VIs, targets, and dependencies in a centralized interface.^[110]^[111] In 2025, community contributions have seen growth in shared AI and machine learning models, with toolkits like SOTA enabling graphical integration of models for test and measurement applications, distributed via platforms such as VIPM and GitHub.^[112]^[113]

Editions and Accessibility Variants

LabVIEW offers several editions tailored to different user needs, ranging from free options for learning and personal use to full-featured professional versions for industrial applications. The Professional edition provides comprehensive capabilities, including advanced debugging, deployment tools, and compatibility with a wide array of add-ons and toolkits, making it suitable for commercial and industrial development. It is available through annual subscriptions, with pricing typically starting around $2,771 per year, though exact costs depend on configuration and region. Perpetual licenses for the Professional edition were reintroduced in late 2024 after a period of unavailability, allowing users lifetime access to a specific version with optional maintenance for updates.^[114]^[115] For non-commercial users, the Community Edition serves as a free alternative, offering the core functionality of the Professional edition, including graphical programming, data acquisition interfaces, and integration with G Web Development Software for creating web-based applications. It is restricted to personal, educational, and hobbyist projects, with no support for commercial deployment, and receives updates to current releases. This edition targets students, educators, and hobbyists seeking accessible entry into graphical programming without cost barriers. The Home Bundle, a discontinued hobbyist package from before 2018, previously bundled the full LabVIEW development system with select modules like Control Design and Simulation at a low one-time price, but it has been superseded by the Community Edition.^[106]^[116]^[117]^[118] Specialized variants extend LabVIEW's functionality through add-on modules. The LabVIEW Real-Time Module enables the creation of deterministic, stand-alone applications on embedded hardware targets, supporting real-time operating systems for applications requiring precise timing, such as control systems. Similarly, the LabVIEW FPGA Module facilitates the design, simulation, and deployment of custom hardware logic to NI FPGA devices, allowing graphical programming of field-programmable gate arrays for high-performance signal processing. LabVIEW NXG, the next-generation variant, emphasizes modern workflows with browser-based editing and the Web Module for developing interactive user interfaces accessible via web browsers, enhancing remote monitoring and data visualization. These modules are available as paid add-ons primarily for Professional edition users.^[119] Accessibility features ensure broader adoption across user groups. Trial versions of LabVIEW Professional and modules provide 30-day evaluations for testing compatibility and features without commitment. Perpetual licenses, phased out after 2020 in favor of subscriptions, were reinstated in late 2024 to accommodate users preferring one-time purchases, though subscriptions remain the primary model for ongoing access to new releases. Educational discounts significantly lower costs for academic institutions; for instance, single-seat academic licenses for LabVIEW Professional are available at approximately $173 per year, and volume licensing options further reduce per-seat pricing for universities. In the 2025 Q3 release, free integration of the Nigel AI Advisor—an AI tool for code suggestions, debugging assistance, and workflow optimization—was added to the Community Edition, further democratizing advanced features for non-commercial users and promoting skill development in AI-assisted engineering.^[4]^[120]^[14]^[121]

Applications and Uses

Industrial and Scientific Applications

LabVIEW plays a pivotal role in industrial automation, particularly in test systems for aerospace and manufacturing sectors, where its graphical programming environment facilitates rapid integration of hardware and data acquisition for real-time monitoring and control.^[122] In aerospace, companies like Boeing employ LabVIEW alongside NI PXI hardware to develop scalable test platforms for evaluating aircraft noise reduction designs during takeoff, landing, and flight, enabling efficient analysis of high-speed sensor data to validate engineering prototypes.^[122] Similarly, Boeing has integrated LabVIEW for missile system testing, acquiring and analyzing simultaneous high-speed inputs to support advanced defense applications.^[123] In manufacturing, LabVIEW enhances quality control through vision systems, allowing deterministic real-time inspection and automation of production lines.^[124] For instance, the Vision Development Module enables the creation of advanced image analysis software, such as plate quality inspection systems that detect defects and ensure compliance with production standards by processing visual data from cameras integrated with industrial controllers.^[125] This integration supports automated feedback loops for adaptive decision-making, reducing manual intervention in defect detection and improving overall process efficiency.^[126] In scientific research, LabVIEW is instrumental in high-precision data acquisition for particle physics experiments, notably at CERN, where it is used with NI PXI hardware to control collimators in the Large Hadron Collider, ensuring precise positioning to absorb stray particles during high-energy proton and ion beam operations.^[127] At CERN's AEgIS antimatter lab, LabVIEW automation has optimized experiment workflows, reducing data-taking time by 18% and enhancing antimatter production rates through streamlined signal processing and hardware interfacing.^[128] In biomedical applications, LabVIEW supports MRI signal processing by providing integrated controllers and multichannel spectrometers that enable rapid development of image reconstruction algorithms, facilitating real-time analysis of magnetic resonance data for diagnostic advancements.^[129] It also powers low-field NMR/MRI systems, where custom waveforms and signal detection routines process biomedical signals with high fidelity.^[130] Prominent case studies highlight LabVIEW's deployment in space exploration and pharmaceutical research. NASA has used LabVIEW in the testing of Mars rover components, such as the Pancam Mast Assembly, and in rover testbeds for wheel-soil interactions and lidar systems to support planetary missions.^[131] In pharmaceutical R&D, LabVIEW aids compliance with FDA 21 CFR Part 11 regulations by enabling the creation of applications with secure electronic records and signatures through modules like the Distributed System Manager, ensuring audit trails and data integrity in drug development processes.^[132] One key benefit of LabVIEW in these domains is its support for rapid prototyping, which accelerates test system development by integrating modeling, simulation, and hardware-in-the-loop testing, thereby shortening time-to-market for complex applications.^[133] In modern contexts, as of 2025, LabVIEW integrates with Industrial IoT protocols like MQTT and OPC UA to enable smart factory operations, allowing real-time data exchange between edge devices and cloud platforms for predictive maintenance and optimized production in automated manufacturing environments.^[85]

Educational and Training Applications

LabVIEW is widely integrated into STEM curricula at universities to teach engineering concepts such as control systems, data acquisition, and instrumentation. For instance, the Massachusetts Institute of Technology (MIT) employs LabVIEW in its course 2.14: Analysis and Design of Feedback Control Systems, where students use the software for hands-on laboratory exercises involving linear transfer function models, time-domain analysis, and frequency response simulations.^[134] Similarly, institutions like the University of California, San Diego, offer interactive programming courses focused on designing LabVIEW applications for measurement and automation tasks.^[135] These integrations emphasize graphical programming to bridge theoretical concepts with practical implementation, fostering skills in real-time system design. Hands-on learning is facilitated through specialized tools and hardware tailored for educational settings. The NI ELVIS (Educational Laboratory Virtual Instrumentation Suite) kits provide an all-in-one platform combining multifunction data acquisition devices, prototyping boards, and LabVIEW-based software instruments for labs in analog electronics, mechatronics, power electronics, and instrumentation.^[136] The LabVIEW Student Edition includes built-in tutorials and an experimental textbook that guide beginners through graphical programming fundamentals, enabling self-paced learning of data acquisition and analysis.^[137] Complementing this, the NI myDAQ hardware supports portable experiments, allowing students to perform data acquisition tasks like voltage measurements and signal processing on personal devices, ideal for pre-lab preparation or fieldwork.^[138] LabVIEW's educational reach extends to thousands of universities worldwide, with certifications enhancing student credentials. The Certified LabVIEW Associate Developer (CLAD) certification validates foundational knowledge of the LabVIEW environment, core programming structures, and basic data flow concepts, preparing students for entry-level roles in test and measurement.^[139] In 2025, the introduction of the Nigel AI Advisor in LabVIEW 2025 Q3 further supports beginners by offering contextual guidance on VI creation, troubleshooting, and best practices, reducing the learning curve for novice coders in academic projects.^[140] Specific applications in education include circuit simulation and robotics projects, which reinforce conceptual understanding. Students use LabVIEW integrated with NI Multisim to model and simulate electrical circuits, analyzing behaviors like filters and amplifiers before hardware implementation.^[141] In robotics, LabVIEW enables simulation of robot kinematics and control algorithms, as seen in FIRST Robotics Competition training, where learners program virtual robots for tasks like navigation and sensor integration.^[142] These activities culminate in outcomes that prepare students for industry demands, such as developing prototypes for theses—e.g., acoustic emission data acquisition systems—and stimulating research interests through interdisciplinary projects that mirror professional workflows.^[143]^[144]

Criticism and Limitations

Graphical vs. Textual Programming Challenges

One of the primary criticisms of LabVIEW's graphical programming paradigm stems from challenges in version control and collaboration. Unlike textual languages, LabVIEW's binary VI format and wire-based diagrams make it difficult to generate meaningful diffs or merges, as changes to visual layouts do not align well with standard tools like Git. ^[145] This issue is exacerbated in team environments, where concurrent edits often require manual resolution or overwriting, leading to increased error risk and time investment that does not scale for large projects. ^[146] In complex applications, graphical programming can lead to code bloat and "spaghetti wiring," where dense, tangled wire connections obscure logic and hinder maintainability. Studies of LabVIEW models from open repositories show that unorganized wires and other design smells accumulate as projects grow, making the diagrams visually overwhelming and prone to integration issues. ^[147] This visual complexity contrasts with textual languages like Python, where hierarchical code structures and text-based search facilitate navigation in large codebases equivalent to over 10,000 lines. While LabVIEW's visual nature offers an intuitive entry for engineers accustomed to diagrams, the learning curve steepens for debugging and managing large virtual instruments (VIs), as graphical elements lack straightforward text searchability and require spatial reasoning to trace dataflows. ^[147] Research indicates that models with prevalent design smells, common in expansive graphical projects, take approximately 32% longer to debug compared to cleaner ones. ^[147] In comparison to textual paradigms, this limits scalability for software exceeding moderate complexity, where Python's linear readability and ecosystem support better handle extensive refactoring without visual clutter. ^[148] To address these challenges, LabVIEW 2025 Q3 introduces the NI Nigel AI Advisor, which assists in understanding, editing, and refactoring VIs by providing context-aware suggestions for diagram improvements. ^[149] However, persistent issues remain for legacy code migration, where upgrading binary files across versions often triggers recompilation cascades and compatibility conflicts, complicating transitions from older graphical projects. ^[150] User surveys and analyses highlight a productivity impact in team reviews, with graphical debugging delays contributing to notable efficiency losses in collaborative settings. ^[147]

Performance and Scalability Issues

LabVIEW applications often exhibit a high memory footprint, particularly when incorporating graphical user interfaces (GUIs), due to the overhead of managing front-panel elements and dataflow execution. This can lead to memory leaks if references to controls, indicators, or dynamic data structures are not properly closed, resulting in gradual increases in resource usage over time.^[151] For compute-intensive tasks, LabVIEW's execution speed is generally slower than compiled languages like C++ because of additional runtime checks, dynamic memory allocations, and the interpreted nature of its graphical code generation.^[152] In file I/O operations, for example, LabVIEW has been observed to take significantly longer than equivalent C++ implementations, with read times exceeding those of native code by factors of several times.^[153] Scalability challenges arise in distributed systems, where LabVIEW's integration for cluster management introduces complexities such as communication jitter and uncertainties in execution timing across nodes. In real-time applications, achieving determinism—consistent task execution within strict time constraints—incurs overhead from the real-time operating system's scheduling and the need for precise inter-process communication, limiting scalability in multi-node environments.^[154] These issues are exacerbated in large-scale deployments, where coordinating data acquisition and control across distributed hardware requires careful architecture to mitigate latency variations.^[155] LabVIEW's performance relative to native C++ varies by workload; it can lag in I/O-bound tasks like file reading but excels in real-time control and data acquisition scenarios. Offloading compute-intensive portions to FPGAs via LabVIEW FPGA can improve performance by achieving nanosecond precision and gigabytes-per-second throughput for parallel operations like filtering, but this introduces significant complexity, including compilation times ranging from 30 minutes to over two hours for resource-intensive designs.^[156]^[157] In November 2025, NI introduced the LabVIEW FPGA Compile Cloud Service to accelerate compilations using high-performance servers, reducing local resource demands.^[158] Critics also highlight vendor lock-in to National Instruments (NI) hardware, as LabVIEW's seamless integration is optimized for NI devices like PXI and CompactRIO, potentially increasing costs and limiting flexibility when using third-party equipment. Frequent update cycles, while introducing new features, can disrupt workflows through compatibility changes and the need for VI conversions, requiring developers to retest and refactor code during upgrades.^[159] NI has addressed some concerns through quarterly releases, such as the 2025 Q1 update, which includes a compiled object cache to reduce load times and recompilation, enhanced memory management with efficient garbage collection, and optimizations for multi-threading to boost execution speed. Despite these improvements, for high-performance computing applications demanding extreme efficiency in certain domains, alternatives like C++ or Python with specialized libraries are often preferred.^[160]

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This is an interactive programming course designed to teach students how to design and develop LabVIEW applications in a hands-on format.
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https://ocw.mit.edu/courses/2-14-analysis-and-design-of-feedback-control-systems-spring-2014/pages/labs/
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LabVIEW Student Edition Textbook - National Instruments
This textbook provides an instructional and experimental approach for students to learn LabVIEW. It was written specifically with students in mind.
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myDAQ Projects for Engineering Students - NI Learning Center
myDAQ Projects for Engineering Students teaches introductory engineering concepts through engaging DAQExpress workbooks exploring data acquisition.
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Certified LabVIEW Associate Developer (CLAD) - NI Learning Center
The Certified LabVIEW Associate Developer (CLAD) certification indicates a broad working knowledge of the LabVIEW environment.Missing: worldwide | Show results with:worldwide
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NI Nigel™ AI Advisor for Test & Measurement Workflows
### Summary: How Nigel AI Advisor Aids Education, Especially Beginners in 2025
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Simulate Circuits with LabVIEW and NI Multisim - YouTube
Apr 28, 2014 · Know more: http://bitly.com/webcast-wednesday Register for the series: http://bit.ly/12hGKyC This session introduced LabVIEW enthusiasts to ...
[140]
LabVIEW Tutorial 10: Robot Simulation - NI Community
Jan 9, 2018 · You can get a early start learning LabVIEW Robotics for the FIRST Robotics Competition by using Robot Simulation to program a predefined robot.
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[PDF] A LabVIEW-Based Open-Source Data Acquisition Program for ...
This thesis describes a LabVIEW-based open-source data acquisition program for acoustic emission sensing, submitted for a Bachelor of Science in Mechanical ...
[142]
Enhancing the learning experience of undergraduate technology ...
The aim of this study is to enhance the learning experience of undergraduate engineering students and stimulate their research interests.
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[PDF] 3 STRATEGIES FOR DEVELOPING EFFICIENT LABVIEW ...
While diff/merge tools exist for LabVIEW, they do not scale well in terms of time and effort required to resolve conflicts. In a large LabVIEW project, the best.
[144]
[PDF] Yestercode: Improving Code-Change Support in Visual Dataflow ...
extension (in our LabVIEW case, sharing the same graphical pane as the editor). In our prototype, tight editor integration offered several benefits. Aside ...
[145]
[PDF] Evolution of Bad Smells in LabVIEW Graphical Models
We have observed that many users of graphical modeling environments (e.g., LabVIEW) are systems engineers who may not be aware of core software engineering ...
[146]
Visual programming using structured data flow - IEEE Xplore
programming systems. However, there is also a noticeable learning curve associated with developing a dataflow pro- gramming perspective. Experienced control ...
[147]
https://www.jot.fm/issues/issue_2021_01/article1.pdf
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http://ieeexplore.ieee.org/iel2/376/6139/00238853.pdf
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Memory Is Full Error in LabVIEW - NI - Support - National Instruments
May 5, 2025 · Closing unused references is very important in LabVIEW and if not managed properly, it can result in memory leaks. Below are some suggestions to ...
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Why Convert from LV to C++? - NI Community - National Instruments
Jul 16, 2002 · Hi, Converting to C++ will typically result in MAXIMUM 10% increase in speed. (This is execution time, not development time.) ... the best of both ...Missing: benchmarks | Show results with:benchmarks
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LabVIEW File Read Slow?? - NI Community - National Instruments
Mar 31, 2021 · I had some colleagues read this files in Python and C++ and their file read times were similar, about 50 milliseconds or so. So LabVIEW's ...<|separator|>
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[PDF] On the Design of Concurrent, Distributed Real-Time Systems
Aug 13, 2009 · Achieving determinism in distributed real-time systems is challenging, due to uncertainties in execution time, communication jitter, and ...
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https://forums.ni.com/t5/LabVIEW/LabVIEW-File-Read-Slow/td-p/4139875
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Taking LabVIEW beyond the CPU to FPGAs and GPU - JKI
Aug 22, 2025 · LabVIEW developers often hit performance walls when their applications grow beyond what traditional CPU-based processing can handle.
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LabVIEW FPGA Compile Worker Compile Time Benchmarks
### Summary of LabVIEW FPGA Performance Benefits and Complexities
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[PDF] LabView Based Measurement System Design for Data Acquisition ...
Dec 16, 2011 · Vendor Lock In. Closed source platforms creates a software and, to some extent, a hardware dependency. LabView code is called Virtual ...
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What's New in LabVIEW 2025? A Deep Dive into This Year's Q1 ...
Mar 7, 2025 · LabVIEW 2025 Q1 includes an elevated UI, performance boosts, expanded data handling, and upgraded network connectivity.
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(PDF) Performance comparison of instrument automation pipelines ...
Oct 30, 2023 · In runtime analysis (data acquisition and real-time control), LabVIEW (365.69s) performed best in comparison to MATLAB (623.83s), Python (1505. ...