LB log - 20120920
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, 21 Sep 2012 at 12:59 AM (1482 Views)
2147483647.
What's the significance of this number? Wiki knows -
Euler was a badass.The number 2,147,483,647 is the eighth Mersenne prime, equal to (2^31) − 1. It is one of only four known double Mersenne primes.
The primality of this number was proven by Leonhard Euler, who reported the proof in a letter to Daniel Bernoulli written in 1772. Euler used trial division, improving on Cataldi's method, so that at most 372 divisions were needed. The number 2,147,483,647 may have remained the largest known prime until 1876.
The reason that I bring this up is in light of the process which I'm doing for finally compiling usable test data for the IRS Form 1120 series of Software Development. On the 1120 Schedule M3, there's a few fields that they have values which are greater than three billion. I enter them, and after I tab out of the field, the number is magically changed from what I entered to 2147483647. As it turns out, the program correctly set the fields as integer types, and it had never happened until today that I entered a value in the integer field which surpassed its unstated limit. Making the change to handle the value is easy enough - just change the type from Int to Float and format the digit data format to prevent decimals from coming out (as the IRS doesn't parse them, and the formatting is done with num{zzzzzzzzzzzzzz9}), but this means that I'll have to keep an eye out for values that exceed the limit in the future and have to make changes as necessary. All things I wish I would have known sooner but that's what testing is for, right?
Extra Mode.
Hm, pretty crappy session today. Would have passed Alfashear if I had nailed the end triple jack correctly; instead, I got taken from a 78% to a 54% or something heinous. Oh well. At least I got one increase out of the day, and Hitch Hiker 2 is one of the nicer modestly increased charts in EX.Code:EX% & Rank EX.p/f pg.gr.gd.bd.pr combo nc onc %+ date love again tonight @ 79.27 AA 0880.P 355.170.27.0.3 0321 0555 2012-09-20T22:44:04:437Z 0012- wilis @ 28.16 E 1179.F 372.435.708.205.761 0068 2093 2012-09-20T22:47:28:143Z 0289- the biggest roaster @ 69.69 A 0782.P 295.192.61.0.20 0145 0561 2012-09-20T22:49:54:221Z 0020- broadbanded @ 57.95 B 1289.F 462.365.239.9.66 0171 1112 2012-09-20T22:52:39:628Z 0190- inori @ 41.88 D 1962.F 655.652.765.65.345 0100 2342 2012-09-20T22:56:04:753Z 0328- alfashear @ 68.14 A 1506.F 590.326.135.17.93 0127 1105 2012-09-20T23:00:53:134Z 0087- baby blue blanket @ 46.88 C 1960.F 668.624.463.121.420 0148 2090 2012-09-20T23:06:27:858Z 0204- lesson 5 @ 56.84 B 1851.F 669.513.313.28.201 0120 1628 2012-09-20T23:10:00:362Z 0121- ラクエン remix @ 41.99 D 1531.F 484.563.455.71.445 0082 1823 2012-09-20T23:13:19:169Z 0150- 憎しみはあの空の彼方に @ 46.06 C 1723.F 611.501.385.144.549 0072 1870 2012-09-20T23:17:39:861Z 0051- hitch hiker 2 @ 72.40 A 1467.P 581.305.101.3.37 0181 1013 0880 015.11 2012-09-20T23:22:32:244Z 02.68+ 0025+ 42+59-3-4-4- 0168- 2012-03-21T04:43:29:239Z 夢語 @ 44.83 C 1102.F 403.296.285.83.276 0077 1229 2012-09-20T23:35:32:538Z 0080-