All Classes Namespaces Files Functions Variables Typedefs Enumerator Friends Macros Groups
tanh.hpp
Go to the documentation of this file.
#ifndef STAN_MATH_FWD_SCAL_FUN_TANH_HPP
#define STAN_MATH_FWD_SCAL_FUN_TANH_HPP
#include <stan/math/fwd/core.hpp>
namespace stan {
namespace math {
template <typename T>
inline
fvar<T>
tanh(const fvar<T>& x) {
using std::tanh;
T u = tanh(x.val_);
return fvar<T>(u, x.d_ * (1 - u * u));
}
}
}
#endif
core.hpp
stan::math::fvar::d_
T d_
Definition: fvar.hpp:15
stan::math::fvar::val_
T val_
Definition: fvar.hpp:14
stan::math::tanh
fvar< T > tanh(const fvar< T > &x)
Definition: tanh.hpp:14
stan::math::tanh
var tanh(const var &a)
Return the hyperbolic tangent of the specified variable (cmath).
Definition: tanh.hpp:50
stan::math::fvar
Definition: fvar.hpp:13

[ Stan Home Page ] © 2011–2015, Stan Development Team.