Model.addGenConstrAbs()
addGenConstrAbs ( resvar, argvar, name="" )
Add a new general constraint of type GRB.GENCONSTR_ABS to a model.
An ABS constraint
states that the resultant
variable 
should be equal to the absolute value of the argument variable
.
Arguments:
resvar (Var): The variable whose value will be to equal the absolute value of the argument variable.
argvar (var): The variable for which the absolute value will be taken.
name (string, optional): Name for the new general constraint.
Example usage:
# x5 = abs(x1) model.addGenConstrAbs(x5, x1, "absconstr")
