1 #ifndef STAN_MATH_REV_SCAL_FUN_LOG1M_HPP
2 #define STAN_MATH_REV_SCAL_FUN_LOG1M_HPP
11 class log1m_vari :
public op_v_vari {
13 explicit log1m_vari(vari* avi) :
14 op_v_vari(
stan::math::
log1p(-avi->val_), avi) {
17 avi_->adj_ += adj_ / (avi_->val_ - 1);
33 return var(
new log1m_vari(a.
vi_));
Independent (input) and dependent (output) variables for gradients.
vari * vi_
Pointer to the implementation of this variable.
fvar< T > log1p(const fvar< T > &x)
fvar< T > log1m(const fvar< T > &x)