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Old 04-21-2013, 08:56 AM
Elroch Elroch is offline
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Default Re: Concentric circles in Q10

Quote:
Originally Posted by IsidroHidalgo View Post
But I finally don't have a clear idea of the center of our hypothesis here: is always x_1=0 and x_2=0 or not?
Well, x_1 and x_1 are the variables, but the centre is at (0,0) as indicated in yaser's post #2.
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