m*1/det ( matrix -- matrix' )
Extra matrix operations
Extra matrix operations
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Vocabulary
math.matrices.extras
Inputs
Outputs
Word description
Multiply the input matrix by the inverse (recip) of its determinant.
Notes
Examples
Definition
math.matrices.extras
Inputs
| matrix | a square-matrix |
Outputs
| matrix' | a square-matrix |
Word description
Multiply the input matrix by the inverse (recip) of its determinant.
Notes
| • | This word is used to implement recip for square-matrix. |
| • | 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: determinant ( matrix -- determinant ) recip ( x -- y ) |
Examples
USING: math.matrices.extras prettyprint ;
{
{ -14 0 -13 7 }
{ -4 11 7 -12 }
{ -3 2 9 -14 }
{ 3 -5 10 -2 }
} m*1/det .
{ { 7/6855 0 13/13710 -7/13710 } { 2/6855 -11/13710 -7/13710 2/2285 } { 1/4570 -1/6855 -3/4570 7/6855 } { -1/4570 1/2742 -1/1371 1/6855 } }
{ { 7/6855 0 13/13710 -7/13710 } { 2/6855 -11/13710 -7/13710 2/2285 } { 1/4570 -1/6855 -3/4570 7/6855 } { -1/4570 1/2742 -1/1371 1/6855 } }
Definition