1 #ifndef STAN_MATH_REV_CORE_OPERATOR_MINUS_EQUAL_HPP
2 #define STAN_MATH_REV_CORE_OPERATOR_MINUS_EQUAL_HPP
18 vi_ =
new subtract_vd_vari(
vi_, b);
Independent (input) and dependent (output) variables for gradients.
var & operator-=(const var &b)
The compound subtract/assignment operator for variables (C++).
vari * vi_
Pointer to the implementation of this variable.