F_SGEN_JROT/F_DGEN_JROT/F_CGEN_JROT/F_ZGEN_JROT

Generate Jacobi rotation

Input

JROT

Specifies whether the Jacobi rotation generated is

 

 

OUTER, INNER, or SORTED. The following are valid

 

 

options:

 

 

 

• BLAS_INNER_ROTATION

 

 

 

• BLAS_OUTER_ROTATION

 

 

 

• BLAS_SORTED_ROTATION

 

 

X

REAL scalar. X is replaced by A on exit.

 

Y

REAL or COMPLEX scalar. Y is unchanged on exit.

 

Z

REAL scalar. Z is replaced by B on exit.

Output

A

REAL scalar. Replaces the input X.

 

B

REAL scalar. Replaces the input Z.

 

C

REAL cosine used to apply the Jacobi rotation.

 

S

REAL or COMPLEX sine used to apply the Jacobi

 

 

rotation.

 

180HP MLIB User’s Guide