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C# C# Objects Loops and Final Touches Static Members

Posted by Andrew Perry
Andrew Perry
5,266 Points

Question about Random.Next and Random.NextDouble

Where can you see the range of numbers that Random.Next chooses from, since its a pseudo random number then there are are finite list of numbers it chooses from. Also with Random.NextDouble could it ever be exactly 0.500000000000?

1 Answer

Steven Parker
Steven Parker
231,210 Points
Steven Parker
Steven Parker
231,210 Points

:point_right: Pseudo-random does not imply choosing from a list.

That might be one method for generating pseudo-random numbers, but an even more popular method is to employ a mathematical expression that computes a large value and then extract a subset of bits from it.

Predicting if a specific number will be generated by such a method is also difficult. You might be more likely to answer the question by calling the function in a loop and checking against the desired value. It may take very many iterations to prove a "yes", and it may not be possible to be 100% certain about a "no".