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summation

Posted: Fri Jul 19, 2019 7:40 pm
by rejinsr037
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how to code this ?

Re: summation

Posted: Sun Jul 21, 2019 3:56 pm
by Renger
Hi
Just use Y(i-1,r,t). Note however, that this means that you can't use this for the first i if there is no value for i-1. If it is a variable, you probably will have to fix the Y(i-1) to a certain value or you can define the equation for all i > 1

Code: Select all

myeq(i,r)$(ord(i)>1)...
    Y(i,r,t) =L= sum(t, Y(i-1,r,t);
Cheers
Renger

Re: summation

Posted: Sun Jul 21, 2019 4:20 pm
by rejinsr037
THANK YOU :)