PRNG algorithm

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PRNG algorithm

a0u 1256616661|%e %b %Y, %H:%M %Z|agohover

Hi,

I'm interested in how the "rand" function is implemented in TI-83+/84+ calculators. I've looked over the algorithms described in L'Ecuyer's 1988 paper, but I couldn't find much information online about which constants are actually used in the TI calculators. Also, how are the individual seeds (e.g., s1, s2) for the MLCGs determined from the user-supplied seed?

Any info would be greatly appreciated. Thanks in advance.

Re: PRNG algorithm

thornahawk 1256651387|%e %b %Y, %H:%M %Z|agohover

There is a description of the method of L'Ecuyer in the 68k rand page (the same algorithm is used in the Z80 calculators).

Also I presume you've encountered this already?

thornahawk

Re: PRNG algorithm

ztrumpet 1256680788|%e %b %Y, %H:%M %Z|agohover

And this:
http://mpl.unitedti.org/?p=40

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Re: PRNG algorithm

a0u 1256774756|%e %b %Y, %H:%M %Z|agohover

I saw the 68k page but wasn't sure if it was applicable. Thanks for the link.

 

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