Hello everyone
I hope you can help me out with the following case.
I'm trying to write the set of equations (20) and (21) as shown in the attached file, but I'm having a hard time understanding how to write them given the conditions "when(x(i,j,m)=0 and x(i,j,m)=1)".
So far, I wrote 20 as:
r20(m)..sum((i,j),t(i,j)*x(i,j,m))+sum((i,N(j)), h(j)*x(i,j,m))+sum((i,F(j)),((Cm-y(i,j,m))/r)) =l=Hs;
and 21 as two equations:
r21a(F,m)..(Cm-y(i,F,m))/r =g=0; Here set i is not controlled.
r21b(F,m)..(Cm-y(i,j,m))/r =l=H*sum(i,x(i,j,m)); Here It is controlled in the sum but not for the y(i,j,m) variable.
The model is from this article:
https://ac.els-cdn.com/S235214651600008 ... 77a490775b
I appreciate your help.
Can you help me to write the following set of constraints?
Re: Can you help me to write the following set of constraints?
Hi
You just make one constraint and multiply the number 20-part on both sides by(x(i,jm,) and the 21-part by (1 - x(i,j,m)) .
If x(i,j,m) = 1, only the 20-parts are used, if x(i,jm) = 0, only the 21-parts will be used.
CHeers
Renger
You just make one constraint and multiply the number 20-part on both sides by(x(i,jm,) and the 21-part by (1 - x(i,j,m)) .
If x(i,j,m) = 1, only the 20-parts are used, if x(i,jm) = 0, only the 21-parts will be used.
CHeers
Renger
____________________________________
Enjoy modeling even more: Read my blog on modeling at The lazy economist
Enjoy modeling even more: Read my blog on modeling at The lazy economist
Re: Can you help me to write the following set of constraints?
Hi Renger,
Could you help me to write it down?
By multiplying 20 by x(i,j,m) on both sides, doesn't the equation becomes non-linear?
Could you help me to write it down?
By multiplying 20 by x(i,j,m) on both sides, doesn't the equation becomes non-linear?