asum(3F)

NAME
     dasum, sasum, dzasum, scasum - BLAS level ONE L1 norm functions.

FORTRAN 77 SYNOPSIS
     double precision  dasum( n, x, incx )
     integer           incx, n
     double precision  x( 1 )

     real              sasum( n, x, incx )
     integer           incx, n
     real              x( 1 )

     double precision  dzasum( n, x, incx )
     integer           incx, n
     complex*16        x( 1 )

     real              scasum( n, x, incx )
     integer           incx, n
     complex           x( 1 )


C SYNOPSIS
     double dasum( n, x, incx )
     Integer           incx, n;
     double            (*x)[ n ];

     float sasum( n, x, incx )
     Integer           incx, n;
     real              (*x)[ n ];

     double dzasum( n, x, incx )
     Integer           incx, n;
     Zomplex           (*x)[ n ];

     float scasum( n, x, incx )
     Integer           incx, n;

     Complex           (*x)[ n ];

DESCRIPTION
     dasum, sasum, scasum, and dzasum, compute the L1 norm of the vector x of
     length n and increment incx.

         asum <--- Sum( Abs( X(i) ) ) )                      dasum and sasum

         asum <--- Sum( Abs(Real(X(i))) + Abs(Imag(X(i))) )  dzasum and scasum


AUTHORS
          Jack Dongarra, linpack, 3/11/78.