Automatic Differentiation
 
Loading...
Searching...
No Matches
cos.hpp
Go to the documentation of this file.
1#ifndef STAN_MATH_PRIM_FUN_COS_HPP
2#define STAN_MATH_PRIM_FUN_COS_HPP
3
10#include <cmath>
11#include <complex>
12
13namespace stan {
14namespace math {
15
23struct cos_fun {
24 template <typename T>
25 static inline auto fun(const T& x) {
26 using std::cos;
27 return cos(x);
28 }
29};
30
39template <typename Container,
43 Container>* = nullptr>
44inline auto cos(const Container& x) {
46}
47
56template <typename Container,
58inline auto cos(const Container& x) {
60 x, [&](const auto& v) { return v.array().cos(); });
61}
62
63namespace internal {
71template <typename T>
72inline std::complex<T> complex_cos(const std::complex<T>& z) {
73 return cosh(i_times(z));
74}
75} // namespace internal
76
77} // namespace math
78} // namespace stan
79
80#endif
require_not_t< container_type_check_base< is_container, scalar_type_t, TypeCheck, Check... > > require_not_container_st
Require type does not satisfy is_container.
require_t< container_type_check_base< is_container, scalar_type_t, TypeCheck, Check... > > require_container_st
Require type satisfies is_container.
require_all_not_t< is_nonscalar_prim_or_rev_kernel_expression< std::decay_t< Types > >... > require_all_not_nonscalar_prim_or_rev_kernel_expression_t
Require none of the types satisfy is_nonscalar_prim_or_rev_kernel_expression.
require_not_t< is_var_matrix< std::decay_t< T > > > require_not_var_matrix_t
Require type does not satisfy is_var_matrix.
std::complex< T > complex_cos(const std::complex< T > &z)
Return the cosine of the complex argument.
Definition cos.hpp:72
std::complex< T > i_times(const std::complex< T > &z)
Return the specified complex number multiplied by i.
Definition i_times.hpp:20
fvar< T > cosh(const fvar< T > &x)
Definition cosh.hpp:15
fvar< T > cos(const fvar< T > &x)
Definition cos.hpp:14
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...
static auto fun(const T &x)
Definition cos.hpp:25
Structure to wrap cos() so it can be vectorized.
Definition cos.hpp:23