ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Mon, 22 Mar 2021 16:19:40 +0100Is it possible to extend the latin alphabet to AA, AB, AC....https://ask.sagemath.org/question/56315/is-it-possible-to-extend-the-latin-alphabet-to-aa-ab-ac/ Perhaps one more time a stupid question or a Python one.
cand=build_alphabet(name="upper")
show(cand)
can list all letter in latin alphabet. But is there a possibility to construct extended alphabet as `AA, AB, AC,...,AZ, BA,...` as in Excel cellsCyrilleMon, 22 Mar 2021 16:19:40 +0100https://ask.sagemath.org/question/56315/How to define WordMorphism on an infinite alphabet ?https://ask.sagemath.org/question/35622/how-to-define-wordmorphism-on-an-infinite-alphabet/Let imagine I want to do a substitution on the set of all words written with natural numbers.
Example 1: replace every number with its square.
Example 2: make precise rules for substitution of letter in some finite subset of the alphabet and decide that all other letters will be deleted (replaced with empty).
It's not very clear for me from the doc whether this is actually allowed with the command `WordMorphism`, but if it is, I would like to understand how to do it. lbThu, 17 Nov 2016 03:24:55 +0100https://ask.sagemath.org/question/35622/Free algebra over infinite alphabethttps://ask.sagemath.org/question/8599/free-algebra-over-infinite-alphabet/Is it possible to work with a free algebra over an infinite alphabet ? Or to define an Infinite ring of **non-commutative** polynomials ?
I need one of these structures to work with the quasi shuffle product.Matthieu DeneufchâtelThu, 29 Dec 2011 07:39:25 +0100https://ask.sagemath.org/question/8599/