# | 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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