Valentine's is almost over and look what I found on the net. A literal Love equation! Send it over to your special someone to show the geeky side of love!
Paste in 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