Stan Math Library  2.20.0
reverse mode automatic differentiation
inv_cloglog.hpp
Go to the documentation of this file.
1 #ifndef STAN_MATH_FWD_SCAL_FUN_INV_CLOGLOG_HPP
2 #define STAN_MATH_FWD_SCAL_FUN_INV_CLOGLOG_HPP
3 
4 #include <stan/math/fwd/meta.hpp>
5 #include <stan/math/fwd/core.hpp>
7 
8 namespace stan {
9 namespace math {
10 
11 template <typename T>
12 inline fvar<T> inv_cloglog(const fvar<T>& x) {
13  using std::exp;
14  return fvar<T>(inv_cloglog(x.val_), x.d_ * exp(x.val_ - exp(x.val_)));
15 }
16 } // namespace math
17 } // namespace stan
18 #endif
T d_
The tangent (derivative) of this variable.
Definition: fvar.hpp:50
T val_
The value of this variable.
Definition: fvar.hpp:45
fvar< T > exp(const fvar< T > &x)
Definition: exp.hpp:11
fvar< T > inv_cloglog(const fvar< T > &x)
Definition: inv_cloglog.hpp:12
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

     [ Stan Home Page ] © 2011–2018, Stan Development Team.