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Re: Float

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From Lutz Horn <lutz.horn@posteo.de>
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Subject Re: Float
Date Fri, 29 Jul 2016 11:56:55 +0200
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Am 07/29/2016 um 11:44 AM schrieb Cai Gengyang:
> Can someone explain in layman's terms what "float" means ?

The Python builtin float[1]

 > Return a floating point number constructed from a number or string x.

A floating point number[2] is number that is not an integer (and not a 
complex number). It

 > is the formulaic representation that approximates a real number

since computers can't handle handle "real" real numbers which would 
require infinite precision.

Examples are

1.0
3.14159

Lutz

[1] https://docs.python.org/3/library/functions.html#float
[2] https://en.wikipedia.org/wiki/Floating_point

-- 
https://www.lhorn.de/
https://emailselfdefense.fsf.org/de/

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Thread

Float Cai Gengyang <gengyangcai@gmail.com> - 2016-07-29 02:44 -0700
  Re: Float Lutz Horn <lutz.horn@posteo.de> - 2016-07-29 11:56 +0200
  Re: Float Ben Finney <ben+python@benfinney.id.au> - 2016-07-29 20:25 +1000
  Re: Float Steven D'Aprano <steve@pearwood.info> - 2016-07-30 00:26 +1000
    Re: Float Cai Gengyang <gengyangcai@gmail.com> - 2016-07-30 03:21 -0700
      Re: Float Steven D'Aprano <steve@pearwood.info> - 2016-07-30 20:34 +1000
        Re: Float Cai Gengyang <gengyangcai@gmail.com> - 2016-07-30 04:44 -0700
          Re: Float Chris Angelico <rosuav@gmail.com> - 2016-07-30 21:51 +1000
            Re: Float Rustom Mody <rustompmody@gmail.com> - 2016-07-30 20:20 -0700
              Re: Float Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-08-04 00:28 -0700
          Re: Float Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2016-07-30 12:03 -0400
          Re: Float eryk sun <eryksun@gmail.com> - 2016-07-30 18:19 +0000

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