Function vecmath::mat2x3_inv_det

pub fn mat2x3_inv_det<T>(mat: Matrix2x3<T>) -> T where
    T: Copy + One + Add<T, Output = T> + Mul<T, Output = T> + Sub<T, Output = T> + Div<T, Output = T>, 

Computes inverse determinant of a 2x3 matrix.