vector_funcs.c

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#include "vector_funcs.h"
 
void vec_add(double* v1, double* v2, double* result, const int len) {
    for (int i = 0; i < len; ++i)
        result[i] = v1[i] + v2[i];
}
 
void vec_mul(const double scalar, double* v, double* result, const int len) {
    for (int i = 0; i < len; ++i)
        result[i] = scalar * v[i];
}
 
/* 
    Returns dot product of `v1` and `v2` in `result`
 
    Note: `result` and `v{1,2}` must be vectors of length `len`
*/
void vec_dot(double* v1, double* v2, double* result, const int len) {
    for (int i = 0; i < len; ++i)
        result[i] = v1[i] * v2[i];
}