3D surface visualization.

Write a math function f(x, y) with two variables x, y and visualize the surface graph.
The surface is visualized in the 3 dimenssional space x, y, and z. z = f(x, y).
Use ^ to raise to any power.
Use log(number/x, base) for logarithm, you can omit the base for log to base 10.
Use sqrt(x) for squre root.
The rest of the mathmatical notations/symbols are the same as the general conventions.

x Axis From Interval To

y Axis From Interval To

F(x, y)