Function invert_unit_upper_triangular 

pub fn invert_unit_upper_triangular<T: ComplexField>(
    dst: MatMut<'_, T>,
    src: MatRef<'_, T>,
    par: Par,
)

computes the inverse of the upper triangular matrix src (with implicit unit diagonal) and stores the strictly upper triangular part of the result to dst.

panics

panics if src and dst have mismatching dimensions, or if they are not square.