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Originally posted by: luisequinones
Does anyone could help me with this?
I need to model a constraint of the form:
1/(1+ exp(-0.5*(Dvar-4))) >=0.8
Where the only decision variable is Dvar
This really has nothing to do with CPLEX per se, and looks suspiciously like a homework problem. Here's a hint: the logarithm function is your friend.