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= ccu*sum(i,qcu(i)) + chu*sum(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) - 20*qcu(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.

\

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= ccu*sum(i,qcu(i)) + chu*sum(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) - 20*qcu(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.

Edson Valle

edsoncv@gmail.com

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