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Groups > comp.lang.python > #91738
| From | Dennis Lee Bieber <wlfraed@ix.netcom.com> |
|---|---|
| Subject | Re: What is considered an "advanced" topic in Python? |
| Date | 2015-06-01 20:33 -0400 |
| Organization | IISS Elusive Unicorn |
| References | <c03de3a7-3429-44a3-8241-5a7d81b9aefc@googlegroups.com> <CAPTjJmrCR6LWApe7UUF9DBCcQe2+hsCYi+s203aENUv2mmvDAA@mail.gmail.com> <201506011124.t51BOqO2021385@fido.openend.se> <201506010949.35134.gheskett@wdtv.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.29.1433205348.13271.python-list@python.org> (permalink) |
On Mon, 1 Jun 2015 09:49:35 -0400, Gene Heskett <gheskett@wdtv.com>
declaimed the following:
>But IMO, any language that does not have the ability to set an fp number
>to a fixed number of digits to the right of the separator regardless of
>which , or . is used, needs one written.
>
That removes all modern hardware units using IEEE floating point
standard, and pretty much all languages since (including) the first version
of FORTRAN.
Floating point numbers are x-significant digits (commonly x:7 for
single precision and x:15 for double precision) with an exponent.
Ada supports float and fixed point, but fixed point most easily
visualized as an integer with a scaling factor.
>The ability to guarantee that the output of a FIX(2) is zero to at least
>17 significant digits so that a zero coomparison is not non-zero because
>theres a 1 15 digits out in a 2 digit money format, is an absolute
>requirement.
>
Use COBOL then... One used to have to go out of their way to get a
"floating point" data type in COBOL... The common numeric type is packed
BCD.
Even M$ "money" datatype uses four decimal places even if only two are
displayed to the user -- it allows for accumulation of fractions of a cent
over time.
--
Wulfraed Dennis Lee Bieber AF6VN
wlfraed@ix.netcom.com HTTP://wlfraed.home.netcom.com/
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What is considered an "advanced" topic in Python? Mike Driscoll <kyosohma@gmail.com> - 2015-05-29 09:01 -0700
Re: What is considered an "advanced" topic in Python? Joel Goldstick <joel.goldstick@gmail.com> - 2015-05-29 12:08 -0400
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Re: What is considered an "advanced" topic in Python? Chris Angelico <rosuav@gmail.com> - 2015-05-30 03:08 +1000
Re: What is considered an "advanced" topic in Python? random832@fastmail.us - 2015-05-31 23:18 -0400
Re: What is considered an "advanced" topic in Python? Chris Angelico <rosuav@gmail.com> - 2015-06-01 13:43 +1000
Re: What is considered an "advanced" topic in Python? Laura Creighton <lac@openend.se> - 2015-06-01 09:58 +0200
Re: What is considered an "advanced" topic in Python? Marko Rauhamaa <marko@pacujo.net> - 2015-06-01 12:36 +0300
Zero [was Re: What is considered an "advanced" topic in Python?] Steven D'Aprano <steve@pearwood.info> - 2015-06-01 22:07 +1000
Re: Zero [was Re: What is considered an "advanced" topic in Python?] Laura Creighton <lac@openend.se> - 2015-06-01 14:52 +0200
Re: Zero [was Re: What is considered an "advanced" topic in Python?] Dave Farrance <DaveFarrance@OMiTTHiSyahooANDTHiS.co.uk> - 2015-06-01 13:56 +0100
Re: Zero [was Re: What is considered an "advanced" topic in Python?] Skip Montanaro <skip.montanaro@gmail.com> - 2015-06-01 08:14 -0500
Re: Zero [was Re: What is considered an "advanced" topic in Python?] Dave Farrance <df@see.replyto.invalid> - 2015-06-01 15:39 +0100
Re: Zero [was Re: What is considered an "advanced" topic in Python?] Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-06-01 18:35 +0100
Re: Zero [was Re: What is considered an "advanced" topic in Python?] Terry Reedy <tjreedy@udel.edu> - 2015-06-01 17:32 -0400
Re: Zero [was Re: What is considered an "advanced" topic in Python?] Marko Rauhamaa <marko@pacujo.net> - 2015-06-01 16:18 +0300
Re: Zero [was Re: What is considered an "advanced" topic in Python?] random832@fastmail.us - 2015-06-01 09:32 -0400
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Re: What is considered an "advanced" topic in Python? Todd <toddrjen@gmail.com> - 2015-05-29 19:02 +0200
Re: What is considered an "advanced" topic in Python? sohcahtoa82@gmail.com - 2015-05-29 10:03 -0700
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Re: What is considered an "advanced" topic in Python? sohcahtoa82@gmail.com - 2015-05-29 14:06 -0700
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Re: What is considered an "advanced" topic in Python? Rustom Mody <rustompmody@gmail.com> - 2015-05-30 22:18 -0700
Re: What is considered an "advanced" topic in Python? Gene Heskett <gheskett@wdtv.com> - 2015-06-01 09:49 -0400
Re: What is considered an "advanced" topic in Python? Denis McMahon <denismfmcmahon@gmail.com> - 2015-06-01 15:30 +0000
Re: What is considered an "advanced" topic in Python? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-06-01 20:33 -0400
Re: What is considered an "advanced" topic in Python? Gene Heskett <gheskett@wdtv.com> - 2015-06-01 23:30 -0400
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