HP 41C Pollard Brent Integer Factorization
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07-05-2014, 09:11 PM
Post: #2
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RE: HP 41C Pollard Brent Integer Factorization
POBR takes 1.5 minutes to factor 503*509, whereas the brute-force NP program in the PPC ROM takes only 1 minute. This is very strange, since it seems to me that no method should take longer than brute-force trial and error.
Also, POBR never seems to finish with even moderate-sized inputs, such as 991*997. Is this expected, or evidence of a bug? (I double-checked to be sure that I keyed your programs in correctly.) <0|ΙΈ|0> -Joe- |
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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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