F_SSPR2/F_DSPR2/F_CSPR2/F_ZSPR2

Symmetric rank-2 update

 

 

complex Hermitian matrix A, stored by columns in

 

 

packed form.

Output

AP

The upper or lower triangle of the updated A matrix, as

 

 

specified by uplo, replaces the input.

A ← αx yT + α yxT + βA with A=AT

388HP MLIB User’s Guide