@cortex-js/compute-engine

Cortex Compute Engine

Symbolic manipulation and numeric evaluation of MathJSON expressions

MathJSON is a lightweight mathematical notation interchange format based on JSON.

The Cortex Compute Engine can parse LaTeX to MathJSON, serialize MathJSON to LaTeX, format, simplify and evaluate MathJSON expressions.

Reference documentation and guides at cortexjs.io/compute-engine.

Using Compute Engine

$ npm install --save @cortex-js/compute-engine

import { parse, evaluate } from '@cortex-js/compute-engine';

const expr = parse('2^{11}-1 \\in \\P');

console.log(expr);
// ➔ ["Element", ["Subtract", ["Power", 2, 11] , 1], "PrimeNumber"]

console.log(evaluate(expr));
// ➔ "False"

More

• Build instructions

Related Projects

MathJSON

A lightweight mathematical notation interchange format

MathLive (on GitHub)

A Web Component for math input.

Cortex (on GitHub)

A programming language for scientific computing

Support the Project

• 🌟 Star the GitHub repo (it really helps)
• 💬 Ask questions and give feedback on our Discussion Forum
• 📨 Drop a line to [e-mail]

License

This project is licensed under the MIT License.

Changelog

0.21.0 2023-11-02

New Features

• #125 Parse and serialize environemnts, i.e. \begin{matrix} 1 & 2 \\ 3 & 4 \end{matrix} will be parsed as ["Matrix", ["List", ["List", 1, 2], ["List", 3, 4]]].

  A new section on Linear Algebra has some details on the supported formats.

  The linear algebra operations are limited at the moment, but will be expanded in the future.

• Added IsSame function, which is the function expression corresponding to expr.isSame().

• <s>Added CanonicalOrder function, which sorts the arguments of commutative functions into canonical order. This is useful to compare two non-canonical expressions for equality.</s>

ce.box(["CanonicalOrder", ["Add", 1, "x"]]).isSame(
  ce.box(["CanonicalOrder", ["Add", "x", 1]])
);
// -> true

Issue Resolved

• When evaluating a sum (\sum) with a bound that is not a number, return the sum expression instead of an error.