1#ifndef STAN_MATH_OPENCL_REV_LOG_SUM_EXP_HPP
2#define STAN_MATH_OPENCL_REV_LOG_SUM_EXP_HPP
23 require_all_kernel_expressions_and_none_scalar_t<T>* =
nullptr>
26 A.adj() += res.adj() * exp(A.val() - res.val());
var_value< plain_type_t< T > > make_callback_var(T &&value, F &&functor)
Creates a new var initialized with a callback_vari with a given value and reverse-pass callback funct...
fvar< T > log_sum_exp(const fvar< T > &x1, const fvar< T > &x2)
The lgamma implementation in stan-math is based on either the reentrant safe lgamma_r implementation ...