I don't know if you're familiar with this but I still want to share this. All you have to do is to copy the equation below

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

then paste it on the google search tab. What do you see? Please comment it below. Thanks! :DD