db_utilities_algebra.h revision e295e32b68cf04f0d99138bf4a6d25555f3aef99 
1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17/* $Id: db_utilities_algebra.h,v 1.3 2011/06/17 14:03:31 mbansal Exp $ */
18
19#ifndef DB_UTILITIES_ALGEBRA
20#define DB_UTILITIES_ALGEBRA
21
22#include "db_utilities.h"
23
24
25
26/*****************************************************************
27*    Lean and mean begins here                                   *
28*****************************************************************/
29/*!
30 * \defgroup LMAlgebra (LM) Algebra utilities
31 */
32/*\{*/
33
34inline void db_HomogenousNormalize3(double *x)
35{
36    db_MultiplyScalar3(x,db_SafeSqrtReciprocal(db_SquareSum3(x)));
37}
38
39/*\}*/
40
41#endif /* DB_UTILITIES_ALGEBRA */
42