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mathjs

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Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif

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<!-- Note: This file is automatically generated from source code comments. Changes made in this file will be overridden. --> # Function usolveAll Finds all solutions of a linear equation system by backward substitution. Matrix must be an upper triangular matrix. `U * x = b` ## Syntax ```js math.usolveAll(U, b) ``` ### Parameters Parameter | Type | Description --------- | ---- | ----------- `U` | Matrix, Array | A N x N matrix or array (U) `b` | Matrix, Array | A column vector with the b values ### Returns Type | Description ---- | ----------- DenseMatrix[] &#124; Array[] | An array of affine-independent column vectors (x) that solve the linear system ## Examples ```js const a = [[-2, 3], [2, 1]] const b = [11, 9] const x = usolveAll(a, b) // [ [[8], [9]] ] ``` ## See also [usolve](usolve.md), [lup](lup.md), [slu](slu.md), [usolve](usolve.md), [lusolve](lusolve.md)