Gaussian peak z = 10 e^{−(x²+y²)/10}
Equation: z = 10 * exp(-(x^2 + y^2)/10)
The Gaussian z = A exp(−r² / (2σ²)) decays faster than every polynomial as r → ∞, so the foothills look almost flat.
In the simulator it is a good test of height coloring: one bright peak over a dark floor.