Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #71683

Re: PEP 8 : Maximum line Length :

Show all headers | View raw

On Sat, May 17, 2014 at 10:52 PM, Albert van der Horst
<albert@spenarnc.xs4all.nl> wrote:
> That may be tong-in-cheek but mathematicians do exactly that. We
> use roman, greek and hebrew alphabets in normal italics and boldface
> and then some special characters for element-of, logical-or, integral signs,
> triangles and what not. Underbarred and upper twiggled, as a suffix a prefix
> or a superfix. All in the name of avoiding names longer than one character.
>
> When we run out then there are creative ways to combine known characters
> into Jacobi symbols and choose functions.
>
> There are even conventions that allow to leave out characters, like
> "juxtaposition means multiplication" and the Einstein summation convention.

This, I think, is the main reason for the one-character variable name
convention. Why else are there subscripts? Instead of using "V0"
(two-character name), you use "V₀" (one-character name with a
subscript tag on it) to avoid collision with multiplication.

> Now translate E=mc^2 into Java.

Dunno, but in Python it would be:

assert E==m*c*c

And would probably fail, because that's all floating point :)

ChrisA

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Re: PEP 8 : Maximum line Length : Peter Otten <__peter__@web.de> - 2014-05-13 10:45 +0200
  Re: PEP 8 : Maximum line Length : Rustom Mody <rustompmody@gmail.com> - 2014-05-13 06:18 -0700
  Re: PEP 8 : Maximum line Length : wxjmfauth@gmail.com - 2014-05-15 07:17 -0700
    Re: PEP 8 : Maximum line Length : Chris Angelico <rosuav@gmail.com> - 2014-05-16 00:27 +1000
      Re: PEP 8 : Maximum line Length : wxjmfauth@gmail.com - 2014-05-15 08:48 -0700
      Re: PEP 8 : Maximum line Length : albert@spenarnc.xs4all.nl (Albert van der Horst) - 2014-05-17 12:52 +0000
        Re: PEP 8 : Maximum line Length : Chris Angelico <rosuav@gmail.com> - 2014-05-17 23:18 +1000
          Re: PEP 8 : Maximum line Length : Roy Smith <roy@panix.com> - 2014-05-17 09:49 -0400
        Re: PEP 8 : Maximum line Length : Tim Chase <python.list@tim.thechases.com> - 2014-05-17 08:28 -0500
          Re: PEP 8 : Maximum line Length : Roy Smith <roy@panix.com> - 2014-05-17 09:46 -0400
        Re: PEP 8 : Maximum line Length : Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-05-17 15:02 +0100
          Re: PEP 8 : Maximum line Length : Roy Smith <roy@panix.com> - 2014-05-17 10:06 -0400
            Re: PEP 8 : Maximum line Length : Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-05-17 15:21 +0100
            Re: PEP 8 : Maximum line Length : Rustom Mody <rustompmody@gmail.com> - 2014-05-17 10:46 -0700

csiph-web