HP MLIB User's Guide Vol. 1 7th Ed.

Chapter 3 Basic Matrix Operations 371
Multiple matrix-vector multiply, rank 2 update F_SGEMVER/F_DGEMVER/F_CGEMVER/F_ZGEMVER
REAL or COMPLEX array, minimum length
(N - 1) x |incx| + 1.
W Stores the resulting vector when the operand x is
multiplied by the updated matrix A.
REAL or COMPLEX array, minimum length
(N - 1) x |incw| + 1.
w αA
ˆ
x←