#include "vector.hpp"
#include "matrix.hpp"
const vector vector::operator*(const matrix &m) const {
  vector res(m.get_num_entries());
  for (long long i = 0; i < this->get_dimention(); i++) {
    cnumber sum = 0;
    for (long long j = 0; j < this->get_dimention(); j++) {
      sum = sum + (m.get_entry(j)[i] * this->entries[j]);
    }
    res[i] = sum;
  }

  return res;
}