SCSUM1 (3lapack)

take the sum of the absolute values of a complex vector and returns a single precision result

SYNOPSIS

  REAL FUNCTION SCSUM1( N, CX, INCX )

      INTEGER   INCX, N

      COMPLEX   CX( * )

PURPOSE

  SCSUM1 takes the sum of the absolute values of a complex vector and returns
  a single precision result.

  Based on SCASUM from the Level 1 BLAS.
  The change is to use the 'genuine' absolute value.

  Contributed by Nick Higham for use with CLACON.

ARGUMENTS

  N       (input) INTEGER
          The number of elements in the vector CX.

  CX      (input) COMPLEX array, dimension (N)
          The vector whose elements will be summed.

  INCX    (input) INTEGER
          The spacing between successive values of CX.  INCX > 0.