<cartesian-square-indices> ( n -- matrix )
Matrix operations

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Vocabulary
math.matrices

Inputs

n	an integer

Outputs

matrix

a square-matrix

Word description
Create a square-matrix full of cartesian-products. See cartesian product.

Notes
This word is the square variant of <cartesian-indices>.

Examples

USING: math.matrices prettyprint ; 1 <cartesian-square-indices> .
{ { { 0 0 } } }

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

Definition

USING: arrays kernel ;

IN: math.matrices

: <cartesian-square-indices> ( n -- matrix )
    dup 2array <cartesian-indices> ; inline