HP 41C Pollard Brent Integer Factorization
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07-07-2014, 12:27 PM
Post: #8
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RE: HP 41C Pollard Brent Integer Factorization
(07-07-2014 12:02 PM)Joe Horn Wrote:(07-07-2014 06:04 AM)Jim Horn Wrote: A modulo 210 brute force factoring on the HP-67 took 0.1042*sqrt(x) seconds in 1979. The HP-41 averaged 3 times that speed. So your example would take around 58 minutes. (CF "Finding Factors Faster", PPC Journal, mid-Cretaceous epoch, by some old phart) So 3 hrs 20 mins versus 37 mins with a bad seed choice. Is the NP programme written in a lower level language? Where can I find documentation on "Finding Factors Faster"? If you're interested, have a look at the performance of POBR on the WP 34S. |
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Messages In This Thread |
HP 41C Pollard Brent Integer Factorization - Gerald H - 07-04-2014, 07:07 PM
RE: HP 41C Pollard Brent Integer Factorization - Joe Horn - 07-05-2014, 09:11 PM
RE: HP 41C Pollard Brent Integer Factorization - Gerald H - 07-06-2014, 05:41 AM
RE: HP 41C Pollard Brent Integer Factorization - Gerald H - 07-06-2014, 06:55 AM
RE: HP 41C Pollard Brent Integer Factorization - Joe Horn - 07-07-2014, 05:55 AM
RE: HP 41C Pollard Brent Integer Factorization - Jim Horn - 07-07-2014, 06:04 AM
RE: HP 41C Pollard Brent Integer Factorization - Joe Horn - 07-07-2014, 12:02 PM
RE: HP 41C Pollard Brent Integer Factorization - Gerald H - 07-07-2014 12:27 PM
RE: HP 41C Pollard Brent Integer Factorization - Joe Horn - 07-08-2014, 06:20 AM
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