Sunday, July 5, 2009

learn something new everyday

circle

\left(x - a \right)^2 + \left( y - b \right)^2=r^2.
Center (a,b) with radius r
Ellipse

((x-x_0)^2)/(a^2)+((y-y_0)^2)/(b^2)=1.
Center (X0, Y0). Horizontal radius a and vertical radius b
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