Bits of integer
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12-07-2022, 08:41 AM
Post: #19
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RE: Bits of integer
(12-07-2022 06:33 AM)Paul Dale Wrote: Logâ‚‚ is the way here. As noted in the OP, the log2 method can fail when the argument is close to the maximum representable integer. As does log10 fail to extract the number's exponent on various machines in the same condition: HP41C, HP15C: 1E9 1 - LOG INT --> 9 Free42: 1E33 1 - LOG IP --> 33 It's just a rounding effect (correct results, no error). But I agree that, in most cases when the argument range is known and limited, the log2 method is the simplest (but not necessary the fastest) way. J-F |
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Messages In This Thread |
Bits of integer - Albert Chan - 12-05-2022, 12:12 PM
RE: Bits of integer - Werner - 12-05-2022, 12:41 PM
RE: Bits of integer - J-F Garnier - 12-05-2022, 02:55 PM
RE: Bits of integer - Albert Chan - 12-05-2022, 04:13 PM
RE: Bits of integer - Valentin Albillo - 12-05-2022, 04:29 PM
RE: Bits of integer - J-F Garnier - 12-06-2022, 08:29 AM
RE: Bits of integer - robve - 12-05-2022, 10:06 PM
RE: Bits of integer - Albert Chan - 12-06-2022, 12:15 AM
RE: Bits of integer - John Keith - 12-06-2022, 07:15 PM
RE: Bits of integer - robve - 12-06-2022, 08:15 PM
RE: Bits of integer - Thomas Klemm - 12-06-2022, 07:41 AM
RE: Bits of integer - Albert Chan - 12-06-2022, 06:49 PM
RE: Bits of integer - robve - 12-06-2022, 07:26 PM
RE: Bits of integer - Albert Chan - 12-06-2022, 09:34 PM
RE: Bits of integer - FLISZT - 12-07-2022, 12:52 AM
RE: Bits of integer - Paul Dale - 12-07-2022, 06:33 AM
RE: Bits of integer - J-F Garnier - 12-07-2022 08:41 AM
RE: Bits of integer - Albert Chan - 12-07-2022, 02:51 PM
RE: Bits of integer - J-F Garnier - 12-10-2022, 09:31 AM
RE: Bits of integer - Joe Horn - 12-07-2022, 07:18 AM
RE: Bits of integer - Werner - 12-07-2022, 08:00 AM
RE: Bits of integer - pinkman - 12-07-2022, 10:13 PM
RE: Bits of integer - mfleming - 12-07-2022, 09:48 PM
RE: Bits of integer - John Keith - 12-11-2022, 09:09 PM
RE: Bits of integer - FLISZT - 12-12-2022, 04:54 PM
RE: Bits of integer - cdmackay - 12-12-2022, 07:28 PM
RE: Bits of integer - FLISZT - 12-12-2022, 08:14 PM
RE: Bits of integer - mfleming - 12-12-2022, 10:07 PM
RE: Bits of integer - Joe Horn - 12-13-2022, 02:37 AM
RE: Bits of integer - Joe Horn - 12-13-2022, 09:17 AM
RE: Bits of integer - mfleming - 12-13-2022, 12:15 PM
RE: Bits of integer - Albert Chan - 12-14-2022, 02:35 PM
RE: Bits of integer - mfleming - 12-14-2022, 11:16 PM
RE: Bits of integer - Gjermund Skailand - 12-14-2022, 09:47 PM
RE: Bits of integer - robve - 12-15-2022, 02:07 AM
RE: Bits of integer - Albert Chan - 12-15-2022, 06:08 AM
RE: Bits of integer - EdS2 - 12-15-2022, 09:06 AM
RE: Bits of integer - Albert Chan - 12-15-2022, 12:29 PM
RE: Bits of integer - mfleming - 12-15-2022, 12:59 PM
RE: Bits of integer - Thomas Klemm - 12-15-2022, 04:08 PM
RE: Bits of integer - Albert Chan - 12-15-2022, 07:44 PM
RE: Bits of integer - FLISZT - 12-17-2022, 02:31 AM
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