echelon ( matrix -- matrix' )

Vocabulary

math.matrices.elimination

Inputs

matrix

a sequence

Outputs

matrix'

a sequence

Word description

Computes a row-echelon form of the matrix. An empty matrix is returned unchanged. The input matrix is modified during elimination.

Definition

IN: math.matrices.elimination

: echelon ( matrix -- matrix' ) [ 0 0 (echelon) ] with-matrix ;