| # | Line 5 | Line 5 | double copysign(double sign, double value); | |
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| 5 | using namespace std; | |
| 6 | double dotProduct(vector<double>& v1, vector<double>& v2); | |
| 7 | double copysign(double sign, double value); | |
| 8 | + | double norm2(vector<double>& x); |
| 9 | #endif | |
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