14th Feb: I "(1-(|x|-1)^2)^0.5=-3(1-(|x|/2)^0.5)^0.5" you!

[ajapale]

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[ajapale]

Unfortunately StB does not support images so I had to post here instead.

 

[dontaskme]

that's a nice cardioid

 

[Grizzly]

One of those meaningful titles that we hear so much about!