Stan Math Library  2.9.0
reverse mode automatic differentiation
mdivide_right_ldlt.hpp
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1 #ifndef STAN_MATH_PRIM_MAT_FUN_MDIVIDE_RIGHT_LDLT_HPP
2 #define STAN_MATH_PRIM_MAT_FUN_MDIVIDE_RIGHT_LDLT_HPP
3 
9 #include <boost/math/tools/promotion.hpp>
10 
11 namespace stan {
12  namespace math {
13 
22  template <typename T1, typename T2, int R1, int C1, int R2, int C2>
23  inline
24  Eigen::Matrix<typename boost::math::tools::promote_args<T1, T2>::type,
25  R1, C2>
26  mdivide_right_ldlt(const Eigen::Matrix<T1, R1, C1> &b,
29  stan::math::check_multiplicable("mdivide_right_ldlt",
30  "b", b,
31  "A", A);
32 
33  return transpose(mdivide_left_ldlt(A, transpose(b)));
34  }
35 
36  template <int R1, int C1, int R2, int C2>
37  inline Eigen::Matrix<double, R1, C2>
38  mdivide_right_ldlt(const Eigen::Matrix<double, R1, C1> &b,
40  stan::math::check_multiplicable("mdivide_right_ldlt",
41  "b", b,
42  "A", A);
43  return A.solveRight(b);
44  }
45 
46  }
47 }
48 #endif
Eigen::Matrix< fvar< T2 >, R1, C2 > mdivide_left_ldlt(const stan::math::LDLT_factor< double, R1, C1 > &A, const Eigen::Matrix< fvar< T2 >, R2, C2 > &b)
Returns the solution of the system Ax=b given an LDLT_factor of A.
bool check_multiplicable(const char *function, const char *name1, const T1 &y1, const char *name2, const T2 &y2)
Return true if the matrices can be multiplied.
Eigen::Matrix< typename boost::math::tools::promote_args< T1, T2 >::type, R1, C2 > mdivide_right_ldlt(const Eigen::Matrix< T1, R1, C1 > &b, const stan::math::LDLT_factor< T2, R2, C2 > &A)
Returns the solution of the system xA=b given an LDLT_factor of A.
Eigen::Matrix< T, C, R > transpose(const Eigen::Matrix< T, R, C > &m)
Definition: transpose.hpp:12

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