Originally posted by: Yanis.hs

Hello every body,

I had a problem with simple optimization :

Minimize 

None

subject to 

Cin_CO2Calculation(0):      CinCO2(1)=-300

Cin_CO2Calculation(1):      0.000648862 CinCO2(1) + 0.000277 CinCO2(2)=0.5876

Cin_CO2Calculation(2):      0.000648862 CinCO2(2) + 0.000277 CinCO2(3)=0.5876

Cin_CO2Calculation(3):      0.000648862 CinCO2(3) + 0.000277 CinCO2(4)=0.5876

Cin_CO2Calculation(4):      0.000648862 CinCO2(4) + 0.000277 CinCO2(5)=0.5876

End 

CPLEX told me that there is no solution for this problem. After checks, I understand that CPLEX consider all variables positives and this is why it does not find solution. Please let me know how I can solve this problem.

Regards,