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What is the number of generated random numbers after establishing a random function
Posted Jan 6, 2024, 10:58 a.m. EST 1 Reply
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I used the random function function to establish a random normal function rn1(), then set up a parameter rn1 (x, y, z), and then established a geometric model to study this parameter. During this process, how do I know the number of random numbers I generate
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Interpretation 1: I'm fairly sure that the number of random numbers that are output matches the number of points {the (x,y,z) values} that you feed it. Think of it like any other function, e.g., w=sin(q). If you evaluate that at N values of q, you will obtain N values of w (not necessarily unique values, of course). Does that help?
Interpretation 2: Did you actually mean to ask how many random numbers will Comsol's random number function generate (with a fixed seed, or maybe a random seed) before it starts to exhibit non-random behavior? That is a much more subtle question. I don't know. Here is a generic discussion, if you are interested: https://en.wikipedia.org/wiki/Random_number_generation .
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