In Lesson 05 of the GNU Octave with GX-TXT course, learn how to explore scientific Datasets, Variable IDs, and metadata using public GX-TXT APIs. A real photocatalysis experiment provides the data for a practical, reproducible Octave exercise.
Learn how to use conditional statements, for and while loops, and reusable functions in GNU Octave. Simulate Newton’s law of cooling using Euler’s method, compare numerical and analytical solutions, and publish scientific datasets and plots through GX-TXT public APIs.
Learn how to work with vectors and matrices in GNU Octave through a practical temperature measurement experiment using three sensors. Explore matrix indexing, vectorized calculations, numerical functions, and GX-TXT public APIs for scientific data processing and Dataset publication. Includes a complete tested Octave script, detailed explanations, and experimental results.
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In Lesson 02 of our GNU Octave with GX-TXT course, we explore variables, data types, arithmetic operators, vectors, and complex numbers. We build a scientific calculator, introduce automated numerical validation, and learn how to access GX-TXT public APIs through the Octave Script Bridge. The experiment has been successfully tested with GX-TXT dev-109.
An illustrated introduction to the GNU Octave debugger in GX-TXT. Two examples tested in dev-107 cover nested functions, breakpoints, the Call Stack, local variables and numerical computing through NUMERIC_API_v1.
In this first lesson, you will learn how to write and run a GNU Octave script directly in GX-TXT. We will open Octave Script Workspace, import an `.m` file or type the code in the editor, assign a Script ID, and launch the script. Using the public Script Bridge APIs, we will convert five temperature readings to kelvin, calculate their mean, and inspect the results and execution log in the Session.
An introduction to GX-TXT, the environment I built to keep the data, analyses, curves, scripts and notes of an experiment together without ever losing data provenance. Beta on GitHub.
GX-TXT-v3 tests with a real photodiode and IR remote reveal the 38 kHz carrier, burst timing, and NEC-family protocol.
GX-TXT-v3 testing shows how pulse count affects HOLD-node charging, LED turn-on threshold, and indication time.
GX LII-2 reactive-load Bode tests reveal fixture limits, repeatable phase rotation, and impedance-dependent measurement effects.