There is no randomness on fundamental sciences like statics, physics, math etc. That sciences always searching for a reason. But we're need values which them looking like random in cryptography, tests, analysis, simulation etc. So, A pseudorandom sequence of numbers is one that appears to be statistically random, despite having been produced by a completely deterministic and repeatable process. In computer science we can describe it as a algorithm which is generating a Pseudo random values.

The Ackley function is widely used for testing optimization algorithms. In its two-dimensional form, as shown in the plot above, it is characterized by a nearly flat outer region, and a large hole at the centre. The function poses a risk for optimization algorithms, particularly hillclimbing algorithms, to be trapped in one of its many local minima.

Recommended variable values are: a = 20, b = 0.2 and c = 2π.

So,