addGenConstrAbs ( resvar, argvar, name="" )

Add a new general constraint of type GRB.GENCONSTR_ABS to a model.

An ABS constraint <span>$</span>r = \mbox{abs}\{x\}<span>$</span> states that the resultant variable <span>$</span>r<span>$</span> should be equal to the absolute value of the argument variable <span>$</span>x<span>$</span>.


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")