Go to the source code of this file.
subroutine zaxpy |
( |
integer |
N, |
|
|
complex*16 |
ZA, |
|
|
complex*16, dimension(*) |
ZX, |
|
|
integer |
INCX, |
|
|
complex*16, dimension(*) |
ZY, |
|
|
integer |
INCY |
|
) |
| |
ZAXPY
- Purpose:
ZAXPY constant times a vector plus a vector.
- Author
- Univ. of Tennessee
-
Univ. of California Berkeley
-
Univ. of Colorado Denver
-
NAG Ltd.
- Date
- November 2011
- Further Details:
jack dongarra, 3/11/78.
modified 12/3/93, array(1) declarations changed to array(*)
Definition at line 53 of file zaxpy.f.
64 COMPLEX*16 zx(*),zy(*)
77 IF (
dcabs1(za).EQ.0.0d0)
RETURN
78 IF (incx.EQ.1 .AND. incy.EQ.1)
THEN
83 zy(i) = zy(i) + za*zx(i)
92 IF (incx.LT.0) ix = (-n+1)*incx + 1
93 IF (incy.LT.0) iy = (-n+1)*incy + 1
95 zy(iy) = zy(iy) + za*zx(ix)
double precision function dcabs1(Z)
DCABS1