CartanMatrix class

[stumpc5]

A class for Cartan matrices

Apply attachment: trac_14137-cartan_matrix_class-ts.patch

Depends on #2023
Depends on #14314
Depends on #14673

CC: @sagetrac-sage-combinat @nthiery erichmond@math.ubc.ca @tscrim

Component: combinatorics

Keywords: cartan matrix, days45, days49

Author: Travis Scrimshaw

Reviewer: Ben Salisbury

Merged: sage-5.11.beta2

Issue created by migration from https://trac.sagemath.org/ticket/14137

[tscrim]

Changed keywords from cartan matrix, sagedays45 to cartan matrix, days45

[tscrim]

comment:1

Attachment: cartan_matrix.py.gz

[tscrim]

comment:2

Are you trying to factor this part out of #11187?

[stumpc5]

comment:3

Replying to @tscrim:

Are you trying to factor this part out of #11187?

Yes -- if you want, you are very welcome to take it over!

[tscrim]

Dependencies: #2023 #14314

[tscrim]

Author: Travis Scrimshaw

[tscrim]

Description changed:

--- 
+++ 
@@ -1 +1 @@
-to be written
+A class for Cartan matrices

[tscrim]

Attachment: trac_14137-cartan_matrix_class-ts.2.patch.gz

[tscrim]

Description changed:

--- 
+++ 
@@ -1 +1,3 @@
 A class for Cartan matrices
+
+Apply [attachment: trac_14137-cartan_matrix_class-ts.2.patch](https://github.com/sagemath/sage-prod/files/10657158/trac_14137-cartan_matrix_class-ts.2.patch.gz)