elt_multiply.hpp

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#ifndef __STAN__MATH__MATRIX__ELT_MULTIPLY_HPP__
#define __STAN__MATH__MATRIX__ELT_MULTIPLY_HPP__

#include <boost/math/tools/promotion.hpp>
#include <stan/math/matrix/Eigen.hpp>
#include <stan/math/matrix/validate_matching_dims.hpp>

namespace stan {
  namespace math {
    
    template <typename T1, typename T2, int R, int C>
    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) {
      stan::math::validate_matching_dims(m1,m2,"elt_multiply");
      Eigen::Matrix<typename boost::math::tools::promote_args<T1,T2>::type, R, C>
        result(m1.rows(),m2.cols());
      for (int i = 0; i < m1.size(); ++i)
        result(i) = m1(i) * m2(i);
      return result;
    }
    
  }
}
#endif