metabolize/matrix-inverse

Matrix inverse (code from sylvester)

matrix-inverse

Matrix inverse function. Code is from sylvester by James Coglan, with gratitude.

Installation

Install matrix-inverse by running:

npm install matrix-inverse

Example

const matrixInverse = require('matrix-inverse')

const M = [
  [3, 3.2],
  [3.5, 3.6],
]

const M_inv = matrixInverse(M)

Origin

This code was copied and adapted from sylvester at commit 5a2c61681e988d60bf0a4223640c636052946341.

Contribute

• Issue Tracker: https://github.com/metabolize/matrix-inverse/issues
• Source Code: https://github.com/metabolize/matrix-inverse

Acknowledgements

This project was packaged by Paul Melnikow while at Body Labs. Thanks to Body Labs for the repository transfer.

License

The project is licensed under the MIT license.

matrix-inverse's Issues

Feature request : isInvertible

Hello,

Thanks for this library, very useful ! I've just published https://github.com/piercus/kalman-filter which is using matrix-inverse.

Would it be possible to include a function like isInvertible(matrix) to know if the matrix is invertible.
It will give the ability to check before the code is crashing !

Use case

Actual

const matrixInverse = require('matrix-inverse');
matrixInverse([[0,0],[0,0]]) // Cannot read property 'elements' of null

Expected

(just a proposal)

const matrixInverse = require('matrix-inverse');
const mat = [[0,0],[0,0]];
let invert;
if(matrixInverse.isInvertible(mat)){
  invert = matrixInverse(mat); // Cannot read property 'elements' of null
} else {
  console.log('matrix is not invertible');
  invert = null;
}

Thanks for your help