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ndarray-inv

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ndarray-inv

invert a 2d matrix using Gaussian elimination

0.2.0
latest
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npm
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46K
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ndarray-inv

calculates matrix inverses via Gauss-Jordan elimination. The algorithm has a computational complexity of O(n^3). It handles singular matrices by throwing an error when no non-zero pivot can be chosen during the algorithm.

Build Status

Install

npm install ndarray-inv

Load

Load function via

const inv = require("ndarray-inv");

Example usage:

const ndarray = require("ndarray");
const show = require("ndarray-show");
const ops = require("ndarray-ops");

const M = ndarray(new Float64Array( [2.3, 4.1, 1.8, 1.4] ), [2, 2] )

console.log( show( inv(M) ) );

Output:

-0.337    0.433
0.986   -0.553

Tests

Run tests via command npm test.

Keywords

linear-algebra

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Package last updated on 09 Apr 2018

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