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scasum(3P)		    Sun Performance Library		    scasum(3P)

NAME
       scasum - 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);

PURPOSE
       scasum 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)

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