Stan Math Library  2.15.0
reverse mode automatic differentiation
logit.hpp
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1 #ifndef STAN_MATH_FWD_SCAL_FUN_LOGIT_HPP
2 #define STAN_MATH_FWD_SCAL_FUN_LOGIT_HPP
3 
4 #include <stan/math/fwd/core.hpp>
5 
9 
10 namespace stan {
11  namespace math {
12 
13  template <typename T>
14  inline
15  fvar<T>
16  logit(const fvar<T>& x) {
17  if (x.val_ > 1 || x.val_ < 0)
19  else
20  return fvar<T>(logit(x.val_), x.d_ / (x.val_ - square(x.val_)));
21  }
22  }
23 }
24 #endif
const double NOT_A_NUMBER
(Quiet) not-a-number value.
Definition: constants.hpp:55
fvar< T > square(const fvar< T > &x)
Definition: square.hpp:14
fvar< T > logit(const fvar< T > &x)
Definition: logit.hpp:16

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