Symbolic Math Toolbox™

rref - Reduced row echelon form

Syntax

rref(A)

Description

rref(A) is the reduced row echelon form of the symbolic matrix A.

Note   The Maple® kernel assumes the symbolic variable is never zero in the reduction process. Matrices whose elements are free symbolic variables are regarded as nonzero. For matrices whose elements are rational numbers expressed as the ratio of two arbitrary precision integers, Maple software does exact rational arithmetic without encountering floating point roundoff errors.

Examples

rref(sym(magic(4))) returns

[  1,  0,  0,  1]
[  0,  1,  0,  3]
[  0,  0,  1, -3]
[  0,  0,  0,  0]

round

rsums