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st: Drawing a Circle


From   "Eric G. Wruck" <ewruck@econalytics.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: Drawing a Circle
Date   Tue, 18 Oct 2005 13:24:34 -0400

All this discussion of polynomials piqued my curiosity, so I thought I'd play with twoway function. In particular, I entered

twoway function y = sqrt(1 - (x)^2), range(-1 1) || function y = -sqrt(1 - (x)^2), range(-1 1)

but my unit circle looks like an ellipse. What do I have to do to make this thing look like the circle it is supposed to be?


Eric


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Eric G. Wruck
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