Prod operator

[R Reddy]

Hi, 

I have a constraint with product operator (please see the picture). I am using the prod (or product operator).

Below is the syntax I am using: 

s.t. Constraint3 {j in V}:

1- product {i in W} 1-p[i,j]*x[i] >= g[j];

However, I keep getting the following error, when I try to run the program (yes, W is defined):

i is not defined

context:  1- product {i in W}  >>> 1-p[i,j]*x[i] <<<  >= g[j];

Could you please help me out.

Thank you

[AMPL Google Group]

You should put bracket around your expression product {i in W}(1-p[i,j]*x[i]) .

--
Paras Tiwari
am...@googlegroups.com

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[R Reddy]

Thanks! It's working now