Function nalgebra::linalg::givens::cancel_y
[−]
[src]
pub fn cancel_y<N: Real, S: Storage<N, U2>>(
v: &Vector<N, U2, S>
) -> Option<(UnitComplex<N>, N)>
Computes the rotation R
required such that the y
component of R * v
is zero.
Returns None
if no rotation is needed (i.e. if v.y == 0
). Otherwise, this returns the norm
of v
and the rotation r
such that R * v = [ |v|, 0.0 ]^t
where |v|
is the norm of v
.