1 #ifndef STAN_MATH_REV_SCAL_FUN_EXP_HPP 2 #define STAN_MATH_REV_SCAL_FUN_EXP_HPP 11 class exp_vari :
public op_v_vari {
13 explicit exp_vari(vari* avi) :
14 op_v_vari(
std::
exp(avi->val_), avi) {
17 avi_->adj_ += adj_ * val_;
45 return var(
new exp_vari(a.
vi_));
Independent (input) and dependent (output) variables for gradients.
fvar< T > exp(const fvar< T > &x)
vari * vi_
Pointer to the implementation of this variable.