1 #ifndef STAN_MATH_REV_CORE_OPERATOR_UNARY_NOT_HPP 2 #define STAN_MATH_REV_CORE_OPERATOR_UNARY_NOT_HPP
Independent (input) and dependent (output) variables for gradients.
bool operator!(const fvar< T > &x)
Return the negation of the value of the argument as defined by !.
double val() const
Return the value of this variable.