f06baf generates a real Givens plane rotation with parameters
(
) and
, such that, given real
and
:
On exit,
is overwritten by
, the tangent of the rotation;
and
can be reconstructed from the single stored value
, by a subsequent call to
f06bcf.
To apply the plane rotation to a pair of real vectors, call
f06epf (drot); to apply it to a pair of complex vectors, call
f06kpf (zdrot).
None.
None.
Not applicable.
None.
None.