Thanks very much Alan. As for the my concern about inaccuracy in float math, I suppose I am concerned because I was not aware of the issue before, and I wonder how you deal with such things when you need accuracy for financial things.
Deb in WA, USA > -----Original Message----- > From: alan.ga...@btinternet.com > Sent: Wed, 11 Jun 2014 23:48:37 +0100 > To: tutor@python.org > Subject: Re: [Tutor] A couple newbie questions about Python > > On 11/06/14 21:46, Deb Wyatt wrote: >> Hi. Everywhere I have read, the 'standard practice' for indentation is >> 4 spaces, > > That's a style recommendation. Python doesn't care. > But your readers will. 2 spaces is the absolute minimum, > 8 spaces is about the absolute maximum. Outside that it > gets hard to read the code. > > 3, 4 or 5 spaces is pretty good and you are unlikely > to get complaints except from style pedants or if you > are submitting code for the standard library where they > like to stick with the official guidance. > > >> I just recently became aware of the inaccuracy of calculations using >> floats > > and I am concerned about that. > > The inaccuracies are an inevitable result of the way your computer > processes floating point numbers. > > In what way are you concerned? Its not a Python issue - the exact same > issues occur in any computer - or even your pocket calculator. > If it concerns you in Excel or in Visual Basic/Java/C++ etc too then the > good news is that Python has alternative renderings that can often > reduce/eliminate them - but at the cost of speed and complexity. > > > HTH > -- > Alan G > Author of the Learn to Program web site > http://www.alan-g.me.uk/ > http://www.flickr.com/photos/alangauldphotos > > _______________________________________________ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > https://mail.python.org/mailman/listinfo/tutor ____________________________________________________________ Protect your computer files with professional cloud backup. Get PCRx Backup and upload unlimited files automatically. Learn more at http://backup.pcrx.com/mail _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
