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operator_multiplication.hpp
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1 #ifndef STAN_MATH_FWD_CORE_OPERATOR_MULTIPLICATION_HPP
2 #define STAN_MATH_FWD_CORE_OPERATOR_MULTIPLICATION_HPP
3
4 #include <stan/math/fwd/core/fvar.hpp>
5
6 namespace stan {
7 namespace math {
8
9 template <typename T>
10 inline
11 fvar<T>
12 operator*(const fvar<T>& x1, const fvar<T>& x2) {
13 return fvar<T>(x1.val_ * x2.val_,
14 x1.d_ * x2.val_ + x1.val_ * x2.d_);
15 }
16
17 template <typename T>
18 inline
19 fvar<T>
20 operator*(double x1, const fvar<T>& x2) {
21 return fvar<T>(x1 * x2.val_, x1 * x2.d_);
22 }
23
24 template <typename T>
25 inline
26 fvar<T>
27 operator*(const fvar<T>& x1, double x2) {
28 return fvar<T>(x1.val_ * x2, x1.d_ * x2);
29 }
30 }
31 }
32 #endif
stan::math::fvar::d_
T d_
Definition: fvar.hpp:14
stan
Definition: log_sum_exp.hpp:8
stan::math::fvar::val_
T val_
Definition: fvar.hpp:13
fvar.hpp
stan::math::operator*
fvar< T > operator*(const fvar< T > &x1, const fvar< T > &x2)
Definition: operator_multiplication.hpp:12
stan::math::fvar
Definition: fvar.hpp:12

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