1/det ( matrix -- 1/det )
Extra matrix operations
Extra matrix operations
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Vocabulary
math.matrices.extras
Inputs
Outputs
Word description
Find the inverse (recip) of the determinant of the input matrix.
Notes
Errors
non-square-determinant if the input matrix is not a square-matrix.
division-by-zero if the determinant of the input matrix is 0.
Examples
Definition
math.matrices.extras
Inputs
| matrix | a square-matrix |
Outputs
| 1/det | a number |
Word description
Find the inverse (recip) of the determinant of the input matrix.
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: determinant ( matrix -- determinant ) recip ( x -- y ) |
Errors
non-square-determinant if the input matrix is not a square-matrix.
division-by-zero if the determinant of the input matrix is 0.
Examples
USING: math.matrices.extras prettyprint ;
{
{ 0 10 -12 4 }
{ -9 6 -11 9 }
{ -5 -10 0 2 }
{ -7 -11 10 11 }
} 1/det .
-1/9086
-1/9086
Definition