nelson

The Nelson Programming Language

24 articles

How to Configure and Use FFT Functions with FFTW and MKL Backends in Nelson

Learn to configure and use FFT functions in Nelson with FFTW and MKL backends. Nelson automatically selects the optimal library for high performance.

how-to-guide

Mar 8, 2026

How to Work with JSON Data Using Nelson's json Module: A Complete Guide

Master Nelson's json module to serialize variables with jsonencode and parse JSON strings or files using jsondecode. Format output with jsonprettyprint. A complete guide for Nelson developers.

tutorial

Mar 8, 2026

How to Use MEX API Compatibility for Porting MATLAB Code to Nelson

Effortlessly port MATLAB code to Nelson using the MEX C API Compatibility layer. Compile and run existing MATLAB MEX-files without source code changes.

how-to-guide

Mar 8, 2026

How to Write and Run Tests Using the tests_manager with xUnit Export in Nelson

Learn to write and run tests using Nelson's tests_manager with xUnit export. Execute test suites and export results for CI integration using the test_run function.

how-to-guide

Mar 8, 2026

Nelson Engine Modes: CLI vs GUI vs Embedded Differences Explained

Understand Nelson engine modes: CLI, GUI, and embedded. Learn how each mode functions as a terminal app, an IDE, or integrates UI components into your sessions.

deep-dive

Mar 8, 2026

How Memory Management Works in Nelson: Architecture and Best Practices

Explore Nelson's deterministic reference counting and copy-on-write memory management. Learn how variables and Data blocks work to automatically free memory. Optimize your Nelson code.

internals

Mar 8, 2026

How to Create Graphical User Interfaces Using the GUI Module Controls in Nelson

Learn to build interactive applications with Nelson's GUI module. Easily create graphical user interfaces using msgbox, warndlg, questdlg, uigetfile, and uicontrol.

how-to-guide

Mar 8, 2026

How to Use Nelson's Web Tools for RESTful API Interactions: A Complete Guide

Learn to use Nelson's web tools for RESTful API interactions. Explore webread, webwrite, weboptions, and websave to easily handle HTTP requests and JSON responses in MATLAB.

how-to-guide

Mar 8, 2026

How the Nelson Type Overload System Implements Custom Behaviors: A Complete Guide

Discover how the Nelson type overload system maps function calls to custom M-files at runtime. Learn to implement specialized behaviors efficiently with this comprehensive guide.

deep-dive

Mar 8, 2026

How to Handle Errors and Use the error_manager Module in Nelson

Master error handling in Nelson with error_manager. Learn to bridge C++ exceptions and script functions like error warning and throw for robust code. Discover how.

how-to-guide

Mar 8, 2026

How Sparse Matrices Work in Nelson: Architecture, Construction, and Operations

Explore how Nelson uses Eigen to implement sparse matrices for efficient data handling. Learn about supported construction, arithmetic and conversion operations.

architecture

Mar 8, 2026

How to Use the onCleanup Mechanism in Nelson for Reliable Resource Management

Learn how to use the onCleanup mechanism in nelson-lang/nelson to automatically release resources like file handles even during errors. Ensure reliable resource management.

how-to-guide

Mar 8, 2026

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Share the following with your agent to get started:

curl -s "https://instagit.com/install.md"

Add to your MCP client configuration:

{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}

Ask your agent:

"Use Instagit MCP to understand how nelson-lang/nelson works."

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