ndarray-linear-solve

    3.0.0 • Public • Published

    ndarray-linear-solve

    Solves a system of linear equations, similar to MATLAB's backslash operator, but not yet as sophisticated. (But maybe it will be someday soon! Pull requests welcome!)

    testling badge

    build status

    example

    var solve = require('ndarray-linear-solve');
    var show = require('ndarray-show');
    var ndarray = require('ndarray');
     
    var A = ndarray([ 2, 1, -1, -3, -1, 2, -2, 1, 2 ], [ 3, 3 ], [ 1, 3 ]);
    var B = ndarray([ 8, -11, -3 ])
    var X = ndarray(new Float64Array(3))
    var r = solve(X, A, B)
    console.log('input:\n' + show(A), '\n');
    if (r) {
      console.log('solution:\n' + show(X));
    } else {
      console.log('matrix is singular')
    }

    output:

    input:
       2.000    1.000   -1.000
      -3.000   -1.000    2.000
      -2.000    1.000    2.000 
    
    solution:
       2.000    3.000   -1.000
    
    

    methods

    var solve = require('ndarray-linear-solve')

    var solution = solve(X, A, B)

    Solves the linear system, AX = B for X

    • X is a vector into which the solution is written
    • A is a matrix encoded as an ndarray
    • B is a vector, encoded as an ndarray

    Returns true if the matrix has a solution, otherwise false.

    install

    With npm do:

    npm install ndarray-linear-solve
    

    license

    MIT

    Install

    npm i ndarray-linear-solve

    DownloadsWeekly Downloads

    11

    Version

    3.0.0

    License

    MIT

    Last publish

    Collaborators

    • substack
    • mikolalysenko
    • rreusser
    • jaspervdg
    • planeshifter
    • hughsk