| # | Line 2 | Line 2 | using namespace std; | |
|---|---|---|
| 2 | #define _UTILITY_H_ | |
| 3 | #include <vector> | |
| 4 | #include <math.h> | |
| 5 | < | using namespace std; |
| 5 | > | |
| 6 | double dotProduct(vector<double>& v1, vector<double>& v2); | |
| 7 | double norm2(vector<double>& x); | |
| 8 | ||
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