Kewei Fan

I am a beginner and I would like to know how to constrain conditional statements like this juxtaposition, my code is currently like this, and would like to know what problems this code might have....

I am a beginner, my model has this problem, I visit IIS is like this, but I do not know what this represents, can you explain to me?

  I'm a beginner and I want to know what's wrong with this code, it says: unsupported operand type(s) for ** or pow(): 'Var' and 'float', and if I delete **, it says again:  Additional sense argum...

I am a beginner and I want to know that this constraint can be used to write python code with gurobi, where w and m are variables, and my aim is that when w, m takes a certain value, RDt takes the...