1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/* ========================================================================== */
/* === umfpack_scale ======================================================== */
/* ========================================================================== */
/* -------------------------------------------------------------------------- */
/* UMFPACK Version 4.1 (Apr. 30, 2003), Copyright (c) 2003 by Timothy A. */
/* Davis. All Rights Reserved. See ../README for License. */
/* email: davis@cise.ufl.edu CISE Department, Univ. of Florida. */
/* web: http://www.cise.ufl.edu/research/sparse/umfpack */
/* -------------------------------------------------------------------------- */
int umfpack_di_scale
(
double X [ ],
const double B [ ],
void *Numeric
) ;
long umfpack_dl_scale
(
double X [ ],
const double B [ ],
void *Numeric
) ;
int umfpack_zi_scale
(
double Xx [ ], double Xz [ ],
const double Bx [ ], const double Bz [ ],
void *Numeric
) ;
long umfpack_zl_scale
(
double Xx [ ], double Xz [ ],
const double Bx [ ], const double Bz [ ],
void *Numeric
) ;
/*
double int Syntax:
#include "umfpack.h"
void *Numeric ;
double *B, *X ;
status = umfpack_di_scale (X, B, Numeric) ;
double long Syntax:
#include "umfpack.h"
void *Numeric ;
double *B, *X ;
status = umfpack_dl_scale (X, B, Numeric) ;
complex int Syntax:
#include "umfpack.h"
void *Numeric ;
double *Bx, *Bz, *Xx, *Xz ;
status = umfpack_zi_scale (Xx, Xz, Bx, Bz, Numeric) ;
complex long Syntax:
#include "umfpack.h"
void *Numeric ;
double *Bx, *Bz, *Xx, *Xz ;
status = umfpack_zl_scale (Xx, Xz, Bx, Bz, Numeric) ;
Purpose:
Given LU factors computed by umfpack_*_numeric (PAQ=LU, PRAQ=LU, or
P(R\A)Q=LU), and a vector B, this routine computes X = B, X = R*B, or
X = R\B, as appropriate. X and B must be vectors equal in length to the
number of rows of A.
Returns:
The status code is returned. UMFPACK_OK is returned if successful.
UMFPACK_ERROR_invalid_Numeric_object is returned in the Numeric
object is invalid. UMFPACK_ERROR_argument_missing is returned if
any of the input vectors are missing (X and B for the real version,
and Xx, Xz, Bx, and Bz for the complex version).
Arguments:
double X [n_row] ; Output argument.
or:
double Xx [n_row] ; Output argument, real part.
double Xz [n_row] ; Output argument, imaginary part.
The output vector X.
double B [n_row] ; Input argument, not modified.
or:
double Bx [n_row] ; Input argument, not modified, real part.
double Bz [n_row] ; Input argument, not modified, imaginary part.
The input vector B.
void *Numeric ; Input argument, not modified.
Numeric must point to a valid Numeric object, computed by
umfpack_*_numeric.
*/
|
