Do you know what the following graph looks like whe you graph it?

 

100-3/(sqrt(x^2+y^2))+sin(sqrt(x^2+y^2))+sqrt(200-(x^2+y^2)+10*sin(x)+10sin(y))/1000, x is from -15 to 15, y is from -15 to 15, z is from 90 to 101

 

You can just paste the equation in the Google search box to find out.