Stan Math Library  2.15.0
reverse mode automatic differentiation
elt_multiply.hpp
Go to the documentation of this file.
1 #ifndef STAN_MATH_PRIM_MAT_FUN_ELT_MULTIPLY_HPP
2 #define STAN_MATH_PRIM_MAT_FUN_ELT_MULTIPLY_HPP
3 
4 #include <boost/math/tools/promotion.hpp>
7 
8 namespace stan {
9  namespace math {
10 
23  template <typename T1, typename T2, int R, int C>
24  Eigen::Matrix<typename boost::math::tools::promote_args<T1, T2>::type, R, C>
25  elt_multiply(const Eigen::Matrix<T1, R, C>& m1,
26  const Eigen::Matrix<T2, R, C>& m2) {
27  check_matching_dims("elt_multiply", "m1", m1, "m2", m2);
28  Eigen::Matrix<typename boost::math::tools::promote_args<T1, T2>::type,
29  R, C> result(m1.rows(), m2.cols());
30  for (int i = 0; i < m1.size(); ++i)
31  result(i) = m1(i) * m2(i);
32  return result;
33  }
34 
35  }
36 }
37 #endif
void check_matching_dims(const char *function, const char *name1, const Eigen::Matrix< T1, R1, C1 > &y1, const char *name2, const Eigen::Matrix< T2, R2, C2 > &y2)
Check if the two matrices are of the same size.
Eigen::Matrix< typename boost::math::tools::promote_args< T1, T2 >::type, R, C > elt_multiply(const Eigen::Matrix< T1, R, C > &m1, const Eigen::Matrix< T2, R, C > &m2)
Return the elementwise multiplication of the specified matrices.

     [ Stan Home Page ] © 2011–2016, Stan Development Team.