Originally posted by: anahana

Good morning guys,

This is a really simple question and I am a bit embarrassed to ask it, but I can't find an answer to it. I have a number of equations stored in instances of IloExpr. Each expression depends on multiple variables. I need to evaluate the expressions for a set of variable values that I specify. What I am doing now is writing the expression(s) again while substituting the variables with the values I want. This is hectic since the expressions are long and evaluate them often. 

Is there an "evaluate" method, or a "get" method, where I pass an expression and an array of variable values, and it returns the evaluation? I looked around and didn't find anything. If it is not there, I can just write one. 

Regards, 

Originally posted by: ol

Hello,

there is no such a feature. As a general approach, rewriting the expression with constant expressions instead of variables is probably the best thing to do. 

Regards,

Olivier

Originally posted by: anahana

Thanks. It seems I wasn't missing out on anything after all.