Stan Math Library
2.15.0
reverse mode automatic differentiation
stan
math
fwd
scal
fun
logit.hpp
Go to the documentation of this file.
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#ifndef STAN_MATH_FWD_SCAL_FUN_LOGIT_HPP
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#define STAN_MATH_FWD_SCAL_FUN_LOGIT_HPP
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#include <
stan/math/fwd/core.hpp
>
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#include <
stan/math/prim/scal/fun/logit.hpp
>
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#include <
stan/math/prim/scal/fun/square.hpp
>
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#include <
stan/math/prim/scal/fun/constants.hpp
>
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namespace
stan
{
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namespace
math {
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template
<
typename
T>
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inline
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fvar<T>
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logit
(
const
fvar<T>
& x) {
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if
(x.
val_
> 1 || x.
val_
< 0)
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return
fvar<T>
(
NOT_A_NUMBER
,
NOT_A_NUMBER
);
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else
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return
fvar<T>
(
logit
(x.
val_
), x.
d_
/ (x.
val_
-
square
(x.
val_
)));
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}
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}
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}
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#endif
core.hpp
stan::math::fvar::d_
T d_
Definition:
fvar.hpp:16
stan::math::NOT_A_NUMBER
const double NOT_A_NUMBER
(Quiet) not-a-number value.
Definition:
constants.hpp:55
stan
Definition:
log_sum_exp.hpp:8
square.hpp
stan::math::square
fvar< T > square(const fvar< T > &x)
Definition:
square.hpp:14
stan::math::fvar::val_
T val_
Definition:
fvar.hpp:15
stan::math::logit
fvar< T > logit(const fvar< T > &x)
Definition:
logit.hpp:16
constants.hpp
logit.hpp
stan::math::fvar
Definition:
fvar.hpp:14
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