dot.hpp
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1 #ifndef STAN_MATH_PRIM_ARR_FUN_DOT_HPP
2 #define STAN_MATH_PRIM_ARR_FUN_DOT_HPP
3 
4 #include <vector>
5 #include <cstddef>
6 
7 namespace stan {
8 namespace math {
9 
10 inline double dot(const std::vector<double>& x, const std::vector<double>& y) {
11  double sum = 0.0;
12  for (size_t i = 0; i < x.size(); ++i)
13  sum += x[i] * y[i];
14  return sum;
15 }
16 
17 } // namespace math
18 } // namespace stan
19 #endif
fvar< T > sum(const std::vector< fvar< T > > &m)
Definition: sum.hpp:20
double dot(const std::vector< double > &x, const std::vector< double > &y)
Definition: dot.hpp:10