<square-cols> ( desc -- matrix )
Matrix operations
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Vocabulary
math.matrices

Inputs
desca sequence, an integer, or a matrix


Outputs
matrixa matrix


Generic word contract
Generate a square-matrix from a descriptor.

Word description
If the descriptor is an integer, it is used to generate square columns within that range.

If it is a 1-dimensional sequence, it is replicated to create each column.

If it is a matrix, it is cropped into a square-matrix.

If it is a square-matrix, it is returned unchanged.

Examples
USING: math.matrices prettyprint ; 3 <square-cols> .
{ { 0 0 0 } { 1 1 1 } { 2 2 2 } }

USING: math.matrices prettyprint ; { 2 3 5 } <square-cols> .
{ { 2 2 2 } { 3 3 3 } { 5 5 5 } }


Definition
IN: math.matrices

GENERIC: <square-cols> ( desc -- matrix )


Methods
USING: math math.matrices sequences ;

M: integer <square-cols> <iota> <square-cols> ;


USING: math.matrices ;

M: matrix <square-cols> >square-matrix ;


USING: math.matrices sequences ;

M: sequence <square-cols> <square-rows> flip ;


USING: math.matrices ;

M: square-matrix <square-cols> ;