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 
db_HomogenousNormalize3(double * x)34 inline 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