source: trunk/FACT++/erfa/src/ppsp.c@ 19594

Last change on this file since 19594 was 18921, checked in by tbretz, 8 years ago
Updated to ERFA 1.4.0
File size: 3.7 KB
Line 
1#include "erfa.h"
2
3void eraPpsp(double a[3], double s, double b[3], double apsb[3])
4/*
5** - - - - - - - -
6** e r a P p s p
7** - - - - - - - -
8**
9** P-vector plus scaled p-vector.
10**
11** Given:
12** a double[3] first p-vector
13** s double scalar (multiplier for b)
14** b double[3] second p-vector
15**
16** Returned:
17** apsb double[3] a + s*b
18**
19** Note:
20** It is permissible for any of a, b and apsb to be the same array.
21**
22** Called:
23** eraSxp multiply p-vector by scalar
24** eraPpp p-vector plus p-vector
25**
26** Copyright (C) 2013-2017, NumFOCUS Foundation.
27** Derived, with permission, from the SOFA library. See notes at end of file.
28*/
29{
30 double sb[3];
31
32
33/* s*b. */
34 eraSxp(s, b, sb);
35
36/* a + s*b. */
37 eraPpp(a, sb, apsb);
38
39 return;
40
41}
42/*----------------------------------------------------------------------
43**
44**
45** Copyright (C) 2013-2017, NumFOCUS Foundation.
46** All rights reserved.
47**
48** This library is derived, with permission, from the International
49** Astronomical Union's "Standards of Fundamental Astronomy" library,
50** available from http://www.iausofa.org.
51**
52** The ERFA version is intended to retain identical functionality to
53** the SOFA library, but made distinct through different function and
54** file names, as set out in the SOFA license conditions. The SOFA
55** original has a role as a reference standard for the IAU and IERS,
56** and consequently redistribution is permitted only in its unaltered
57** state. The ERFA version is not subject to this restriction and
58** therefore can be included in distributions which do not support the
59** concept of "read only" software.
60**
61** Although the intent is to replicate the SOFA API (other than
62** replacement of prefix names) and results (with the exception of
63** bugs; any that are discovered will be fixed), SOFA is not
64** responsible for any errors found in this version of the library.
65**
66** If you wish to acknowledge the SOFA heritage, please acknowledge
67** that you are using a library derived from SOFA, rather than SOFA
68** itself.
69**
70**
71** TERMS AND CONDITIONS
72**
73** Redistribution and use in source and binary forms, with or without
74** modification, are permitted provided that the following conditions
75** are met:
76**
77** 1 Redistributions of source code must retain the above copyright
78** notice, this list of conditions and the following disclaimer.
79**
80** 2 Redistributions in binary form must reproduce the above copyright
81** notice, this list of conditions and the following disclaimer in
82** the documentation and/or other materials provided with the
83** distribution.
84**
85** 3 Neither the name of the Standards Of Fundamental Astronomy Board,
86** the International Astronomical Union nor the names of its
87** contributors may be used to endorse or promote products derived
88** from this software without specific prior written permission.
89**
90** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
91** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
92** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
93** FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
94** COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
95** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
96** BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
97** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
98** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
99** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
100** ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
101** POSSIBILITY OF SUCH DAMAGE.
102**
103*/
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