1#ifndef STAN_MATH_PRIM_FUN_INV_SQRT_HPP
2#define STAN_MATH_PRIM_FUN_INV_SQRT_HPP
15template <
typename T, require_arithmetic_t<T>* =
nullptr>
17 return inv(std::sqrt(x));
20template <
typename T, require_complex_t<T>* =
nullptr>
34 static inline auto fun(T&& x) {
47template <
typename Container, require_ad_container_t<Container>* =
nullptr>
50 std::forward<Container>(x));
61template <
typename Container, require_not_var_matrix_t<Container>* =
nullptr,
62 require_container_bt<std::is_arithmetic, Container>* =
nullptr>
68 std::forward<Container>(x));
71 std::forward<Container>(x), [](
auto&& v) {
return v.array().
rsqrt(); });
rsqrt_< as_operation_cl_t< T > > rsqrt(T &&a)
fvar< T > sqrt(const fvar< T > &x)
fvar< T > inv_sqrt(const fvar< T > &x)
fvar< T > inv(const fvar< T > &x)
The lgamma implementation in stan-math is based on either the reentrant safe lgamma_r implementation ...
Base template class for vectorization of unary scalar functions defined by a template class F to a sc...
Structure to wrap 1 / sqrt(x) so that it can be vectorized.