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Asked: 2026-05-31T14:33:31+00:00

Ive been wondering for some time. Is there a good (And fast) way to

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Ive been wondering for some time. Is there a good (And fast) way to make an number random while its seeded?
is there a good algorithm to convert one number into a seemingly random number.

A little illustration:

specialrand(1) = 8
specialrand(2) = 5
specialrand(3) = 2
specialrand(4) = 5
specialrand(5) = 1
specialrand(1) = 8
specialrand(4) = 5
specialrand(1) = 8

It would be very nice if the output could also be huge numbers.

As a note: I don’t want to fill a array and randomize the numbers because I want to be able to feed it huge difference of numbers because I want the same output whenever I restart the program

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1 Answer

  1. Editorial Team

    You’re not looking for a seeded random number. Instead what I think you’re looking for is a hashing function. If you put in the same input and get the same output, that’s not random.

    If you’re looking to generate a sequence of random numbers for a run, but have the same sequence generate from run to run, you can use a random number generator that generates the same sequence given the same seed value.

    Thats how most basic pRNG’s work. There are more cryptographically secure RNG’s out there, but your standard Math.rand() should work to accomplish your needs.

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