SRC/dzsum1.f(3)

NAME
SRC/dzsum1.f

SYNOPSIS

  Functions/Subroutines
double precision function dzsum1 (n, cx, incx)
DZSUM1 forms the 1-norm of the complex vector using the true absolute value.

Function/Subroutine Documentation

  double precision function dzsum1 (integer n, complex*16, dimension( * ) cx, integer incx)

DZSUM1 forms the 1-norm of the complex vector using the true absolute value.

Purpose:

     DZSUM1 takes the sum of the absolute values of a complex
     vector and returns a double precision result.
     Based on DZASUM from the Level 1 BLAS.
     The change is to use the 'genuine' absolute value.

Parameters
    N

              N is INTEGER
              The number of elements in the vector CX.

    CX

              CX is COMPLEX*16 array, dimension (N)
              The vector whose elements will be summed.

    INCX

              INCX is INTEGER
              The spacing between successive values of CX.  INCX > 0.

Author
    Univ. of Tennessee

    Univ. of California Berkeley

    Univ. of Colorado Denver

    NAG Ltd.

Contributors:
    Nick Higham for use with ZLACON.

Definition at line 80 of file dzsum1.f.

Author

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