dzsum1 (3) - Linux Manuals
NAME
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.
CXCX is COMPLEX*16 array, dimension (N) The vector whose elements will be summed.
INCXINCX 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
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