mathjslab

MathJSLab

Interpreter with language syntax like MATLAB®/Octave

This package emulates a parser and evaluator for a subset of MATLAB®/Octave language.

It can run in browser environment and implements an arbitrary precision arithmetics using decimal.js package. The package has functions to generate MathML code of expressions parsed too.

This software is intended for educational purposes to provide teachers and students with a CAD calculation tool that is capable of running in a browser environment. So it can be easily used on different devices.

Installation

Install the mathjslab package:

npm install mathjslab

Install @types/mathjslab package:

npm install --save-dev @type/mathjslab

Usage

The basic API is a instantiation of Evaluator with optional configuration.

let evaluator = new Evaluator(EvaluatorConfiguration);

Examples:

• Parsing

let tree = evaluator.Parse('x=sqrt(1+2*3)');

• Evaluation

let result = evaluator.Evaluate(tree);

• MathML generation

let mathml = evaluator.UnparseML(tree);

License

MIT License

Copyright © 2016-2023 Sergio Lindau

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.