dzsum1.f man page

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 (integerN, complex*16, dimension( * )CX, integerINCX)

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.

Date:

September 2012

Contributors:

Nick Higham for use with ZLACON.

Definition at line 82 of file dzsum1.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

dzsum1(3) is an alias of dzsum1.f(3).

Sat Nov 16 2013 Version 3.4.2 LAPACK