sqrt(cos(x))*cos(200 x)+sqrt(abs(x))-0.7)*(4-x*x)^0.01, sqrt(9-x^2), -sqrt(9-x^2) from -4.5 to 4.5
Works best in Firefox.
Once upon a time, I could actually graph this by hand. On real graph paper. I knew by looking at it vaguely what shape, which cheered me up when I was right :)
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