Stan Math Library  2.20.0
reverse mode automatic differentiation
operator_unary_minus.hpp
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1 #ifndef STAN_MATH_FWD_CORE_OPERATOR_UNARY_MINUS_HPP
2 #define STAN_MATH_FWD_CORE_OPERATOR_UNARY_MINUS_HPP
3 
5 
6 namespace stan {
7 namespace math {
8 
16 template <typename T>
17 inline fvar<T> operator-(const fvar<T>& x) {
18  return fvar<T>(-x.val_, -x.d_);
19 }
20 } // namespace math
21 } // namespace stan
22 #endif
fvar< T > operator-(const fvar< T > &x1, const fvar< T > &x2)
Return the difference of the specified arguments.
T d_
The tangent (derivative) of this variable.
Definition: fvar.hpp:50
T val_
The value of this variable.
Definition: fvar.hpp:45
This template class represents scalars used in forward-mode automatic differentiation, which consist of values and directional derivatives of the specified template type.
Definition: fvar.hpp:41

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