Stan Math Library  2.20.0
reverse mode automatic differentiation
columns_dot_self.hpp
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1 #ifndef STAN_MATH_PRIM_MAT_FUN_COLUMNS_DOT_SELF_HPP
2 #define STAN_MATH_PRIM_MAT_FUN_COLUMNS_DOT_SELF_HPP
3 
5 
6 namespace stan {
7 namespace math {
8 
14 template <typename T, int R, int C>
15 inline Eigen::Matrix<T, 1, C> columns_dot_self(
16  const Eigen::Matrix<T, R, C>& x) {
17  return x.colwise().squaredNorm();
18 }
19 
20 } // namespace math
21 } // namespace stan
22 #endif
Eigen::Matrix< fvar< T >, 1, C > columns_dot_self(const Eigen::Matrix< fvar< T >, R, C > &x)

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