| Phil Carmody on Wed, 13 Aug 2003 07:46:45 -0700 (PDT) |
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| factor() boob |
The following version of GP:
GP/PARI CALCULATOR Version 2.2.5 (alpha)
i686 running linux (ix86/GMP-4.1.2 kernel) 32-bit version
(readline v4.1 enabled, extended help available)
does naughty things when asked to factor simple difference of squares
quadratics:
gp > for(i=1,908,if(length(factor(x^2-i*i)~)==1,print(i"\t("x^2-i*i")\t"factor(x^2-i*i))))
58 (x^2 - 3364) Mat([x^2 - 3364, 1])
59 (x^2 - 3481) Mat([x^2 - 3481, 1])
61 (x^2 - 3721) Mat([x^2 - 3721, 1])
62 (x^2 - 3844) Mat([x^2 - 3844, 1])
893 (x^2 - 797449) Mat([x^2 - 797449, 1])
895 (x^2 - 801025) Mat([x^2 - 801025, 1])
896 (x^2 - 802816) Mat([x^2 - 802816, 1])
898 (x^2 - 806404) Mat([x^2 - 806404, 1])
899 (x^2 - 808201) Mat([x^2 - 808201, 1])
901 (x^2 - 811801) Mat([x^2 - 811801, 1])
902 (x^2 - 813604) Mat([x^2 - 813604, 1])
904 (x^2 - 817216) Mat([x^2 - 817216, 1])
905 (x^2 - 819025) Mat([x^2 - 819025, 1])
907 (x^2 - 822649) Mat([x^2 - 822649, 1])
908 (x^2 - 824464) Mat([x^2 - 824464, 1])
Eeep!
Has this been noticed before or even already fixed?
Phil
=====
Given that Dubya has control of a such vast arsenal, I'm sure
the most pressing issue on his mind is :
Which bombs would Jesus drop? (-- "mm")
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