| Revision: | 1447 |
| Committed: | Fri Jul 30 21:01:35 2004 UTC (19 years, 11 months ago) by gezelter |
| File size: | 468 byte(s) |
| Log Message: | Initial import of OOPSE sources into cvs tree |
| # | Content |
|---|---|
| 1 | #include "Utility.hpp" |
| 2 | #include <vector> |
| 3 | #include <iostream> |
| 4 | #include <math.h> |
| 5 | using namespace std; |
| 6 | |
| 7 | double dotProduct(vector<double>& v1, vector<double>& v2){ |
| 8 | double sum; |
| 9 | |
| 10 | sum = 0; |
| 11 | |
| 12 | if(v1.size() != v2.size()){ |
| 13 | cerr << "Utility Error: dimension of two vectors are not matched" << endl; |
| 14 | exit(-1); |
| 15 | } |
| 16 | |
| 17 | for(int i = 0; i < v1.size(); i++) |
| 18 | sum += v1[i]*v2[i]; |
| 19 | return sum; |
| 20 | } |
| 21 | |
| 22 | double norm2(vector<double>& x){ |
| 23 | return sqrt(dotProduct(x, x)); |
| 24 | } |