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dzasum examples
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d:PRIMARR(COMPLEX(DFLOAT)):=[[1.0+2.0*%i,-3.0+4.0*%i,5.0-6.0*%i]] 

  [1. + 2. %i,- 3. + 4. %i,5. - 6. %i]

dzasum(3,d,1) 

  21.  = (1+2) + (abs(-3)+4) + (5+abs(-6))

dzasum(3,d,2) 

  14.  = (1+2) + (5+abs(-6))

dzasum(-3,d,1) 

  0.   -- never execute for negative arguments

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Man Page Details
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NAME
       DZASUM - BLAS level one, sums the absolute values of the real and imag-
       inary parts of the elements of a double complex vector

SYNOPSIS
       DOUBLE PRECISION FUNCTION DZASUM ( n, x, incx )

           INTEGER                     n, incx

           DOUBLE COMPLEX              x


DESCRIPTION
       This routine performs the following vector operation:

                           n
               DZASUM <-- Sum abs( real(x(i)) ) + abs( aimag(x(i)) )
                          i=1

ARGUMENTS
       n       INTEGER. (input)
               Number of vector elements to be summed.

       x       DOUBLE COMPLEX. (input)
               Array of dimension (n-1) * abs(incx) + 1.
               Vector that contains elements to be summed.

       incx    INTEGER. (input)
               Increment between elements of x.
               If incx = 0, the results will be unpredictable.

RETURN VALUES
       DZASUM  DOUBLE PRECISION. (output)
               Sum of the absolute values of the real and imaginary  parts  of
               the elements of the vector x.
               If n <= 0, DZASUM is set to 0.

NOTES
       When working backward (incx < 0), each routine starts at the end of the
       vector and moves backward, as follows:

            x(1-incx * (n-1)), x(1-incx * (n-2)), ..., x(1)

