Stan Math Library  2.20.0
reverse mode automatic differentiation
inv_sqrt.hpp
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1 #ifndef STAN_MATH_PRIM_MAT_FUN_INV_SQRT_HPP
2 #define STAN_MATH_PRIM_MAT_FUN_INV_SQRT_HPP
3 
6 
7 namespace stan {
8 namespace math {
9 
16 struct inv_sqrt_fun {
17  template <typename T>
18  static inline T fun(const T& x) {
19  return inv_sqrt(x);
20  }
21 };
22 
29 template <typename T>
31  const T& x) {
33 }
34 
35 } // namespace math
36 } // namespace stan
37 
38 #endif
fvar< T > inv_sqrt(const fvar< T > &x)
Definition: inv_sqrt.hpp:11
Structure to wrap inv_sqrt() so that it can be vectorized.
Definition: inv_sqrt.hpp:16
Eigen::Matrix< scalar_t, T::RowsAtCompileTime, T::ColsAtCompileTime > return_t
Return type for applying the function elementwise to a matrix expression template of type T...
static return_t apply(const T &x)
Return the result of applying the function defined by the template parameter F to the specified matri...
static T fun(const T &x)
Definition: inv_sqrt.hpp:18

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