Search this on Google: Mathematical Graphs

Here is an equation which will show you the power of Google search results.
Google has now included some math tools in the search, one can now see Mathematical Graphs in Google search results. Want to test them out just copy the equation below and Google search it, it will give you a graph as shown in the image above.
(sqrt(cos(x))*cos(200x)+sqrt(abs(x))-0.7)*(4-x*x)^0.01, sqrt(9-x^2), -sqrt(9-x^2) from -4.5 to 4.5