On Sun, Apr 20, 2008 at 6:58 PM, William Stein <[EMAIL PROTECTED]> wrote: > > > On Sun, Apr 20, 2008 at 9:36 AM, Ondrej Certik <[EMAIL PROTECTED]> wrote: > > > > On Fri, Apr 18, 2008 at 5:10 PM, William Stein <[EMAIL PROTECTED]> wrote: > > > > > > > > > On Fri, Apr 18, 2008 at 4:59 AM, Ondrej Certik <[EMAIL PROTECTED]> > wrote: > > > > > > > > On Thu, Apr 17, 2008 at 9:24 PM, Hector Villafuerte <[EMAIL > PROTECTED]> wrote: > > > > > > > > > > On Thu, Apr 17, 2008 at 11:53 AM, William Stein <[EMAIL > PROTECTED]> wrote: > > > > > [...] > > > > > > > > > > > In Sage the function is show_identifiers(). > > > > > [...] > > > > > > > > > > Oh, I misunderstood the question then... my bad. Thanks William, > > > > > > > > Why not to name it the same as in Matlab? > > > > > > > > Ondrej > > > > > > Because I named it the same as in Magma! > > > > Haha, I didn't know that. :) > > > > > > > Also, in retrospect, I think Magma's "ShowIdentifiers()" is a far far > > > less obfuscated name than Matlab's cryptics "whos", which frankly > > > looks like a spelling mistake or typo to me. > > > > Agree. The only disadvantage is that it takes longer to type, because > > "sho<TAB>" yields > > > > sage: sho > > show show_default show_identifiers > > > > so I need to type "show_i<TAB>", then <BACKSPACE> and "()<ENTER>". > > Actually it also works without the backspace. > > > > Magma tends to have long verbose names like this. > For example, to compute the charpoly of a matrix > in Magma: > > > A := MatrixAlgebra(RationalField(), 2)![1,2,3,4]; > > R<x> := PolynomialRing(RationalField()); > > CharacteristicPolynomial(A); > x^2 - 5*x - 2 > > Lots of long names. But Magma code is very readable > (like Python), in my opinion. > > In Sage the above is: > > sage: a = matrix(QQ, 2, [1,2,3,4]) > sage: a.charpoly() > x^2 - 5*x - 2
For anything, that is going to endup in scripts, I prefer (I would even say require) longer names, because the code is going to be read more times than written. However for things that are only going to be used in the interactive mode, I prefer short names. There are not so many things that belong to this cathegory, but I think show_identifiers() is one of them. Or will you ever use show_identifiers() in a script/code? Ondrej --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
