Function copy_transpose_scale_into 

pub fn copy_transpose_scale_into<T>(
    dest: &mut StridedViewMut<'_, T>,
    src: &StridedView<'_, T>,
    scale: T,
) -> Result<()>
where
    T: Copy + ElementOpApply + Mul<Output = T> + MaybeSendSync,

Copy with transpose and scaling: dest[j,i] = scale * src[i,j].