1#ifndef STAN_MATH_FWD_CORE_OPERATOR_UNARY_MINUS_HPP
2#define STAN_MATH_FWD_CORE_OPERATOR_UNARY_MINUS_HPP
fvar< T > operator-(const fvar< T > &x1, const fvar< T > &x2)
Return the difference of the specified arguments.
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,...