operator+.cpp

vector <float> operator+(const vector <float>& m1, const vector <float>& m2){
    
    /*  Returns the elementwise sum of two vectors.
        Inputs: 
            m1: a vector
            m2: a vector
        Output: a vector, sum of the vectors m1 and m2.
    */
    
    const unsigned long VECTOR_SIZE = m1.size();
    vector <float> sum (VECTOR_SIZE);
    
    for (unsigned i = 0; i != VECTOR_SIZE; ++i){
        sum[i] = m1[i] + m2[i];
    };
    
    return sum;
}