Automatic Differentiation
 
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step.hpp
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1#ifndef STAN_MATH_REV_FUN_STEP_HPP
2#define STAN_MATH_REV_FUN_STEP_HPP
3
4#include <stan/math/rev/meta.hpp>
5#include <stan/math/rev/core.hpp>
6#include <stan/math/prim/fun/step.hpp>
7
8namespace stan {
9namespace math {
10
27inline var step(const var& a) {
28 return var(new vari(a.vi_->val_ < 0.0 ? 0.0 : 1.0));
29}
30
31} // namespace math
32} // namespace stan
33#endif
stan::math::var_value< double >
stan::math::step
T step(const T &y)
The step, or Heaviside, function.
Definition step.hpp:31
stan::math::vari
vari_value< double > vari
Definition vari.hpp:197
stan::math::var
var_value< double > var
Definition var.hpp:1187
stan
The lgamma implementation in stan-math is based on either the reentrant safe lgamma_r implementation ...
Definition unit_vector_constrain.hpp:15