Function usolve #
Finds one solution of a linear equation system by backward substitution. Matrix must be an upper triangular matrix. Throws an error if there’s no solution.
U * x = b
Syntax #
math.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) |
Throws #
Type | Description —- | ———–
Examples #
const a = [[-2, 3], [2, 1]]
const b = [11, 9]
const x = usolve(a, b) // [[8], [9]]
