How I can code this formula with if operator ?

GAMS
1

Hello friens,

How I can code ‘h’ on this formula with GAMS ? Can I code with if operator ? Can you help me ? :question:
kaynakkısıtı.png

2

Hi
Have a look at this post.
Cheers
Renger

3

Thank you for your help. I have a question, too.

I have a dynamic problem and I want to solve it with reactive procedure which has two levels. On first level, problem will be solved statically and a solution will be obtained.
After that on second level, a distruption will be occured and some problem datas will be changed (now, I am making this change on another GAMS model, but I want it must be on same GAMS model like dynamic model) so model must be run itself maybe on loop and some distruption decisions must be taken by dynamic model.

So how can I code this dynamic model ? Can you help me? Is there any loop examples like this or dynamic models which make decisions and guide the solution itself ?