m- ( m1 m2 -- m )
Matrix operations

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Vocabulary
math.matrices

Inputs

m1	a matrix
m2	a matrix

Outputs

m

a matrix

Word description
Subtracts two matrices element-wise.

Notes

•	This word is intended for use with "flat" (2-dimensional) matrices.
•	This word assumes that elements of the input matrix are compatible with the following words: - ( x y -- z )

Examples

USING: math.matrices prettyprint ; { { 4 5 6 } { 6 5 4 } } { { 1 2 3 } { 3 2 1 } } m- .
{ { 3 3 3 } { 3 3 3 } }

Definition

USING: math.vectors sequences ;

IN: math.matrices

: m- ( m1 m2 -- m ) [ v- ] 2map ;