1#ifndef STAN_MATH_FWD_FUN_EXP2_HPP
2#define STAN_MATH_FWD_FUN_EXP2_HPP
fvar< T > exp2(const fvar< T > &x)
static constexpr double LOG_TWO
The natural logarithm of 2, .
The lgamma implementation in stan-math is based on either the reentrant safe lgamma_r implementation ...
Scalar val_
The value of this variable.
Scalar d_
The tangent (derivative) of this variable.
This template class represents scalars used in forward-mode automatic differentiation,...