f06bef generates a real Jacobi plane rotation with parameters
and
, which diagonalizes a given
real symmetric matrix:
None.
-
1:
– Character(1)
Input
-
On entry: specifies the property which determines the precise form of the rotation.
- .
- .
- .
Constraint:
, or .
-
2:
– Real (Kind=nag_wp)
Input/Output
-
On entry: the value , the element of the input matrix.
On exit: the value .
-
3:
– Real (Kind=nag_wp)
Input/Output
-
On entry: the value , the or element of the input matrix.
On exit: the value , the tangent of the rotation.
-
4:
– Real (Kind=nag_wp)
Input/Output
-
On entry: the value . the element of the input matrix.
On exit: the value .
-
5:
– Real (Kind=nag_wp)
Output
-
On exit: the value , the cosine of the rotation.
-
6:
– Real (Kind=nag_wp)
Output
-
On exit: the value , the sine of the rotation.
None.
Not applicable.
Background information to multithreading can be found in the
Multithreading documentation.
None.
None.