Function usolve

Solves the linear equation system by backward substitution. Matrix must be an upper triangular matrix.

U * x = b

Syntax

usolve(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 | Array A column vector with the linear system solution (x)

Examples

var a = [[-2, 3], [2, 1]];
var b = [11, 9];
var x = usolve(a, b);  // [[8], [9]]

See also

lup, slu, usolve, lusolve