I've done a lot of research on that TI-84 rand() function. It uses the L'Ecuyer's algorithm to generate pseudorandom numbers. I have an interesting case however.
If the rand() function is given the proper seed, it will always generate the same numbers. So, given the first random number that the rand() function generates, is it possible to find the seed of the function?
Let the variable X represent the unknown seed.
X->rand
rand->D
Disp D
Output:
0.114820491
Based off this information, is it possible to calculate the seed of the rand() function? Can you work backwards somehow from the TI-84's rand() algorithm?