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Topic: How to solve this equation?
Replies: 6   Last Post: Apr 18, 2012 4:56 PM

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Dan Cass

Posts: 442
Registered: 12/6/04
Re: How to solve this equation?
Posted: Apr 18, 2012 1:48 PM
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> I have sum(w_i, i from 1 to n)=1 given,
>
> and also I am given a set of numbers e_i, i from 1 to
> n.
>
> Now I need to find a number u, such that
>
> sum(w_i/(u - e_i)^2, i from 1 to n) ...


---> this sum has no right side, so isn't an equation
.... to solve. Did you forget to put a right side in?
>
> My questions are: are there systematic way of finding
> all possible
> solutions u?
>
> And is the number of solution related to n?
>
> I am thinking of maybe for n=2, the number of
> solutions u is 1?
>
> And for general n, the number of solutions u is n-1?
>
> Thanks a lot!




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