Problem with execution

Hi guys
thank you for providing some insights on previous post.
Can anyone tell me why following problem occurs in execution:-
This is one of equation:-
overallobjf…Z1 =e= ccusum(i,qcu(i)) + chusum(j,qhu(j)) +

  • 1200*(qhu(“1”)/(1.2*[dthu(“1”)42{dthu(“1”)+ 42}/
    2]**0.333))**0.6;

while execution error is : division by 0, and equation listing shows:
overallobjf… Z1 + (0)dthu(1) - 20qcu(1) - 20*qcu(2) - (80)*qhu(1)

  • 80*qhu(2) =E= 0 ; (LHS = UNDF)

I know some division by 0 is occurring in second line but all it
contains is variable (qhu(i)) and constants. I can’t figure out why
division by 0 is occurring.

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Patil
In your expression, if dthu(“1”) = 0 then, the denominator goes to zero, you can set a lower bound > 0, such as: dthu.lo(“1”) = 0.0001.
I suppose that this should fix it.
Regards

2011/8/1 pratik patil

Hi guys
thank you for providing some insights on previous post.
Can anyone tell me why following problem occurs in execution:-
This is one of equation:-
overallobjf…Z1 =e= ccusum(i,qcu(i)) + chusum(j,qhu(j)) +

  • 1200*(qhu(“1”)/(1.2*[dthu(“1”)42{dthu(“1”)+ 42}/
    2]**0.333))**0.6;

while execution error is : division by 0, and equation listing shows:
overallobjf… Z1 + (0)dthu(1) - 20qcu(1) - 20*qcu(2) - (80)*qhu(1)

  • 80*qhu(2) =E= 0 ; (LHS = UNDF)

I know some division by 0 is occurring in second line but all it
contains is variable (qhu(i)) and constants. I can’t figure out why
division by 0 is occurring.


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\

Edson Valle
edsoncv@gmail.com


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