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




Re: How to solve this equation?
Posted:
Apr 18, 2012 1:48 PM


> 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 n1? > > Thanks a lot!



