Stan Math Library  2.11.0
reverse mode automatic differentiation
atan.hpp
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1 #ifndef STAN_MATH_PRIM_MAT_FUN_ATAN_HPP
2 #define STAN_MATH_PRIM_MAT_FUN_ATAN_HPP
3 
5 #include <cmath>
6 
7 namespace stan {
8  namespace math {
9 
16  struct atan_fun {
17  template <typename T>
18  static inline T fun(const T& x) {
19  using std::atan;
20  return atan(x);
21  }
22  };
23 
30  template <typename T>
31  inline typename apply_scalar_unary<atan_fun, T>::return_t
32  atan(const T& x) {
34  }
35 
36  }
37 }
38 
39 #endif
static T fun(const T &x)
Definition: atan.hpp:18
fvar< T > atan(const fvar< T > &x)
Definition: atan.hpp:12
var atan(const var &a)
Return the principal value of the arc tangent, in radians, of the specified variable (cmath)...
Definition: atan.hpp:55
static return_t apply(const T &x)
Return the result of applying the function defined by the template parameter F to the specified matri...
Structure to wrap atan() so it can be vectorized.
Definition: atan.hpp:16

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