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reverse mode automatic differentiation
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asin.hpp
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1 #ifndef STAN_MATH_FWD_SCAL_FUN_ASIN_HPP
2 #define STAN_MATH_FWD_SCAL_FUN_ASIN_HPP
3 
4 #include <stan/math/fwd/core.hpp>
6 #include <cmath>
7 
8 namespace stan {
9  namespace math {
10 
11  template <typename T>
12  inline fvar<T> asin(const fvar<T>& x) {
13  using std::asin;
14  using std::sqrt;
15  using stan::math::square;
16  return fvar<T>(asin(x.val_), x.d_ / sqrt(1 - square(x.val_)));
17  }
18 
19  }
20 }
21 #endif
fvar< T > sqrt(const fvar< T > &x)
Definition: sqrt.hpp:15
fvar< T > square(const fvar< T > &x)
Definition: square.hpp:15
var asin(const var &a)
Return the principal value of the arc sine, in radians, of the specified variable (cmath)...
Definition: asin.hpp:58
fvar< T > asin(const fvar< T > &x)
Definition: asin.hpp:12

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