Stan Math Library
2.9.0
reverse mode automatic differentiation
Main Page
Modules
Namespaces
Classes
Files
File List
File Members
stan
math
fwd
scal
fun
atanh.hpp
Go to the documentation of this file.
1
#ifndef STAN_MATH_FWD_SCAL_FUN_ATANH_HPP
2
#define STAN_MATH_FWD_SCAL_FUN_ATANH_HPP
3
4
#include <math.h>
5
#include <
stan/math/fwd/core.hpp
>
6
#include <
stan/math/prim/scal/fun/square.hpp
>
7
#include <cmath>
8
9
namespace
stan
{
10
namespace
math {
11
12
template
<
typename
T>
13
inline
fvar<T>
atanh
(
const
fvar<T>
& x) {
14
using ::atanh
;
15
using
stan::math::square
;
16
return
fvar<T>
(
atanh
(x.
val_
), x.
d_
/ (1 -
square
(x.
val_
)));
17
}
18
19
}
20
}
21
#endif
core.hpp
stan::math::fvar::d_
T d_
Definition:
fvar.hpp:15
stan::math::atanh
fvar< T > atanh(const fvar< T > &x)
Definition:
atanh.hpp:13
stan
Definition:
log_sum_exp.hpp:8
square.hpp
stan::math::square
fvar< T > square(const fvar< T > &x)
Definition:
square.hpp:15
stan::math::fvar::val_
T val_
Definition:
fvar.hpp:14
stan::math::atanh
var atanh(const var &a)
The inverse hyperbolic tangent function for variables (C99).
Definition:
atanh.hpp:70
stan::math::fvar
Definition:
fvar.hpp:13
[
Stan Home Page
]
© 2011–2015, Stan Development Team.