dzasum
dzasum - Return the sum of the absolute values of a vector x.
DOUBLE PRECISION FUNCTION DZASUM( N, X, INCX)
DOUBLE COMPLEX X(*)
INTEGER N, INCX
DOUBLE PRECISION FUNCTION DZASUM_64( N, X, INCX)
DOUBLE COMPLEX X(*)
INTEGER*8 N, INCX
REAL(8) FUNCTION ASUM( [N], X, [INCX])
COMPLEX(8), DIMENSION(:) :: X
INTEGER :: N, INCX
REAL(8) FUNCTION ASUM_64( [N], X, [INCX])
COMPLEX(8), DIMENSION(:) :: X
INTEGER(8) :: N, INCX
#include <sunperf.h>
double dzasum(int n, doublecomplex *x, int incx);
double dzasum_64(long n, doublecomplex *x, long incx);
dzasum Return the sum of the absolute values of the elements of x where x is
an n-vector. This is the sum of the absolute values of the real and complex
elements and not the sum of the squares of the real and complex elements.
-
* N (input)
-
On entry, N specifies the number of elements in the vector. N must be at
least one for the subroutine to have any visible effect. Unchanged on exit.
-
* X (input/output)
-
( 1 + ( m - 1 )*abs( INCY ) ).
On entry, the incremented array X
must contain the vector x. On exit, X is overwritten by the
updated vector x.
-
* INCX (input)
-
On entry, INCX specifies the increment for the elements of
X. INCX must not be zero.
Unchanged on exit.