<square-rows> ( desc -- matrix )
Matrix operations

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Vocabulary
math.matrices

Inputs

desc	a sequence, an integer, or a matrix

Outputs

matrix

a 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 rows within that range.

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

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-rows> .
{ { 0 1 2 } { 0 1 2 } { 0 1 2 } }

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

Definition

IN: math.matrices

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

Methods

USING: math math.matrices sequences ;

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


USING: math.matrices ;

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


USING: arrays kernel math.matrices sequences ;

M: sequence <square-rows>
    [ length ] keep >array [ clone ] curry { } replicate-as ;


USING: math.matrices ;

M: square-matrix <square-rows> ;