(2determinant) ( matrix -- 2det )


Vocabulary
math.matrices.extras.private

Inputs
matrixan object


Outputs
2detan object


Definition
USING: kernel math math.matrices sequences ;

IN: math.matrices.extras.private

: (2determinant) ( matrix -- 2det )
[ main-diagonal ] [ anti-diagonal ] bi [ first2 * ] bi@ - ;
inline