Automatic Differentiation
 
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expm1.hpp
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1#ifndef STAN_MATH_FWD_FUN_EXPM1_HPP
2#define STAN_MATH_FWD_FUN_EXPM1_HPP
3
7#include <cmath>
8
9namespace stan {
10namespace math {
11
12template <typename T>
13inline fvar<T> expm1(const fvar<T>& x) {
14 using std::exp;
15 return fvar<T>(expm1(x.val_), x.d_ * exp(x.val_));
16}
17
18} // namespace math
19} // namespace stan
20#endif
fvar< T > expm1(const fvar< T > &x)
Definition expm1.hpp:13
fvar< T > exp(const fvar< T > &x)
Definition exp.hpp:13
The lgamma implementation in stan-math is based on either the reentrant safe lgamma_r implementation ...
Definition fvar.hpp:9
Scalar val_
The value of this variable.
Definition fvar.hpp:49
Scalar d_
The tangent (derivative) of this variable.
Definition fvar.hpp:61
This template class represents scalars used in forward-mode automatic differentiation,...
Definition fvar.hpp:40