scasum(3P) Sun Performance Library scasum(3P)NAMEscasum - Return the sum of the absolute values of a vector x.
SYNOPSIS
REAL FUNCTION SCASUM(N, X, INCX)
COMPLEX X(*)
INTEGER N, INCX
REAL FUNCTION SCASUM_64(N, X, INCX)
COMPLEX X(*)
INTEGER*8 N, INCX
F95 INTERFACE
REAL FUNCTION ASUM([N], X, [INCX])
COMPLEX, DIMENSION(:) :: X
INTEGER :: N, INCX
REAL FUNCTION ASUM_64([N], X, [INCX])
COMPLEX, DIMENSION(:) :: X
INTEGER(8) :: N, INCX
C INTERFACE
#include <sunperf.h>
float scasum(int n, complex *x, int incx);
float scasum_64(long n, complex *x, long incx);
PURPOSEscasum 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.
ARGUMENTS
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)
( 1 + ( n - 1 )*abs( INCX ) ). On entry, the incremented
array X must contain the vector x. Unchanged on exit.
INCX (input)
On entry, INCX specifies the increment for the elements of X.
INCX must not be zero or negative. Unchanged on exit.
6 Mar 2009 scasum(3P)