Automatic Differentiation
 
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tan.hpp
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1#ifndef STAN_MATH_PRIM_FUN_TAN_HPP
2#define STAN_MATH_PRIM_FUN_TAN_HPP
3
10#include <cmath>
11#include <complex>
12
13namespace stan {
14namespace math {
15
23struct tan_fun {
24 template <typename T>
25 static inline auto fun(const T& x) {
26 using std::tan;
27 return tan(x);
28 }
29};
30
38template <typename Container,
42 Container>* = nullptr>
43inline auto tan(const Container& x) {
45}
46
55template <typename Container,
57inline auto tan(const Container& x) {
59 x, [](const auto& v) { return v.array().tan(); });
60}
61
62namespace internal {
70template <typename V>
71inline std::complex<V> complex_tan(const std::complex<V>& z) {
72 return neg_i_times(tanh(i_times(z)));
73}
74} // namespace internal
75
76} // namespace math
77} // namespace stan
78
79#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< V > complex_tan(const std::complex< V > &z)
Return the tangent of the complex argument.
Definition tan.hpp:71
std::complex< T > i_times(const std::complex< T > &z)
Return the specified complex number multiplied by i.
Definition i_times.hpp:20
std::complex< T > neg_i_times(const std::complex< T > &z)
Return the specified complex number multiplied by -i.
Definition i_times.hpp:36
fvar< T > tan(const fvar< T > &x)
Definition tan.hpp:14
fvar< T > tanh(const fvar< T > &x)
Definition tanh.hpp:15
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 tan.hpp:25
Structure to wrap tan() so that it can be vectorized.
Definition tan.hpp:23