Hi,
Recently, I am trying to solve a mixed integer quadratic model.
However, in the model, we have the constraints which some boolean is
not the same as the input variables.
For example, b1,b2 are the variables. c1,c2 is the input parameters.
(True or False)
if b1=c1, then b2<> c2.
We model as 2*b1+b2<>2*c1+c2. It doesn't work because it will take
this as a nonquardratic nonlinear constraint.
We also model as abs(b1-c1)+abs(b2-c2)>=1 or using "if" statement. The
result is still the same.
Did anyone solve the same problem before? If you can give me some
suggestion, I will appreciate so much.
Thanks,
Edward Huang
--
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups "AMPL Modeling Language" group.
To post to this group, send email to
ampl@...
To unsubscribe from this group, send email to
ampl-unsubscribe@...
For more options, visit this group at
http://groups.google.com/group/ampl?hl=en-~----------~----~----~----~------~----~------~--~---
