I just found something very interesting Google, thanks to Mashable.com and @Huckberry Type this on Google: sqrt(cos(x))*cos(300x)+sqrt(abs(x))-0.7)*(4-x*x)^0.01, sqrt(6-x^2), -sqrt(6-x^2) from -4.5 to 4.5 Have fun!

read more: [Mashable.com] Valentine’s Day surprise from Google!