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reverse mode automatic differentiation
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asinh.hpp
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1 #ifndef STAN_MATH_FWD_SCAL_FUN_ASINH_HPP
2 #define STAN_MATH_FWD_SCAL_FUN_ASINH_HPP
3 
4 #include <math.h>
5 #include <stan/math/fwd/core.hpp>
7 #include <cmath>
8 
9 namespace stan {
10  namespace math {
11 
12  template <typename T>
13  inline fvar<T> asinh(const fvar<T>& x) {
15  using std::sqrt;
16  using stan::math::square;
17  return fvar<T>(asinh(x.val_), x.d_ / sqrt(square(x.val_) + 1));
18  }
19 
20  }
21 }
22 #endif
fvar< T > sqrt(const fvar< T > &x)
Definition: sqrt.hpp:15
fvar< T > square(const fvar< T > &x)
Definition: square.hpp:15
fvar< T > asinh(const fvar< T > &x)
Definition: asinh.hpp:13
var asinh(const var &a)
The inverse hyperbolic sine function for variables (C99).
Definition: asinh.hpp:67

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