Example of a mathematical model of semiconductor diode characteristics
https://wiki.ostrowski.net.pl/php_mysql/openplag/
OpenPlaG (Plot a Graph) is a simple, open source program written in PHP for creating function graphs directly on a web page.
🛠 Basic information
Language and licence: PHP, available under the GNU
GPL v2.
First release: 2006, public source code since 2007.
Current version: 4.0, released June 2020
📈 Main functions
Display of up to three function graphs simultaneously, including their derivatives and integrals.
Library of approximately 180 predefined functions, including trigonometric, hyperbolic, non-functional, probabilistic, special, iterative and fractal functions
Save and load settings (e.g. formulas, ranges) and the ability to define your own formulas and substitutions .
🌐 Applications and use
Runs on PHP server (minimum PHP 7.2 recommended) .
Integrates directly into the web page, allowing charts to be dynamically drawn based on user input .
A built-in guide explains the syntax and use of the tool .