Stan Math Library  2.15.0
reverse mode automatic differentiation
expm1.hpp
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1 #ifndef STAN_MATH_FWD_SCAL_FUN_EXPM1_HPP
2 #define STAN_MATH_FWD_SCAL_FUN_EXPM1_HPP
3 
5 #include <stan/math/fwd/core.hpp>
6 #include <cmath>
7 
8 namespace stan {
9  namespace math {
10 
11  template <typename T>
12  inline fvar<T> expm1(const fvar<T>& x) {
13  using std::exp;
14  return fvar<T>(expm1(x.val_), x.d_ * exp(x.val_));
15  }
16 
17  }
18 }
19 #endif
fvar< T > expm1(const fvar< T > &x)
Definition: expm1.hpp:12
fvar< T > exp(const fvar< T > &x)
Definition: exp.hpp:10

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