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 March 3rd, 2017, 06:14 PM #1 Newbie   Joined: Mar 2017 From: Bangladesh Posts: 1 Thanks: 0 What is the next number ? My brother work with a company from last year . Everyday the manager give all of worker a one time PIN code every PIN code have serial number . I want to calculate the next number everyday. But I can't do it from 1 year ! So, what is the method they use for it ? Can anyone calculate this ?
 March 18th, 2017, 08:30 AM #2 Newbie   Joined: Feb 2017 From: Bay Area, US Posts: 5 Thanks: 0 Math Focus: 3x+1 Most likely this is randomized in such a way that when he generates the next number it will be vastly different from if he did it, say, 1 second earlier. Or he's using a very large polynomial function and using the last digits of a number generated. Unless you have thousands of numbers, it will be very difficult to figure out. You could do quadratic regression on these 3, cubic when you have the next number, and so on, but I seriously doubt that would get you anywhere.
March 18th, 2017, 10:00 AM   #3
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Quote:
 Originally Posted by JohnDeo My brother work with a company from last year . Everyday the manager give all of worker a one time PIN code every PIN code have serial number . I want to calculate the next number everyday. But I can't do it from 1 year ! So, what is the method they use for it ?
WHY? Are you the "manager"?
Can you post something clearer, in correct English? Thank you.

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