Blame thirdparty/superlu/SuperLU_4.1/DOC/html/dzsum1_8c.html
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<meta content="text/html;charset=UTF-8" http-equiv="Content-Type">
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<title>SuperLU: SRC/dzsum1.c File Reference</title>
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Main Page
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Data Structures
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Files
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SRC/dzsum1.c File ReferenceTakes sum of the absolute values of a complex vector and returns a double precision result. More...
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#include "slu_dcomplex.h"
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#include "slu_Cnames.h"
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Defines
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#define CX(I) cx[(I)-1]
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Functions
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double dzsum1_ (int *n, doublecomplex *cx, int *incx)
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Detailed Description
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-- LAPACK auxiliary routine (version 2.0) --
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Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd.,
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Courant Institute, Argonne National Lab, and Rice University
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October 31, 1992
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Define Documentation
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#define CX
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(
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I
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)
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cx[(I)-1]
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Function Documentation
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double dzsum1_
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(
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int *
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n,
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doublecomplex *
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cx,
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int *
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incx
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)
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Purpose
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=======
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DZSUM1 takes the sum of the absolute values of a complex
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vector and returns a double precision result.
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Based on DZASUM from the Level 1 BLAS.
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The change is to use the 'genuine' absolute value.
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Contributed by Nick Higham for use with ZLACON.
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Arguments
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=========
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N (input) INT
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The number of elements in the vector CX.
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CX (input) COMPLEX*16 array, dimension (N)
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The vector whose elements will be summed.
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INCX (input) INT
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The spacing between successive values of CX. INCX > 0.
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=====================================================================
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<address style="text-align: right;"><small>Generated on Mon Nov 22 10:23:47 2010 for SuperLU by </small></address>
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 1.5.5
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