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inv_logit.hpp
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1 #ifndef STAN_MATH_PRIM_SCAL_FUN_INV_LOGIT_HPP
2 #define STAN_MATH_PRIM_SCAL_FUN_INV_LOGIT_HPP
3
4 #include <cmath>
5
6 namespace stan {
7
8 namespace math {
9
50 inline double inv_logit(const double a) {
51 using std::exp;
52 return 1.0 / (1.0 + exp(-a));
53 }
54
55 }
56 }
57
58 #endif
59
stan
Definition: log_sum_exp.hpp:8
stan::math::inv_logit
fvar< T > inv_logit(const fvar< T > &x)
Definition: inv_logit.hpp:15
stan::math::exp
fvar< T > exp(const fvar< T > &x)
Definition: exp.hpp:10

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