It's a basic question, but after looking at the manual for a while I couldn't find the answer, so here goes.
R = RootSystem(["A",7])
print R.weight_lattice().fundamental_weight(1)
returns Lambda[1]. Is it possible to rename Lambda here? I could hack this by overriding the .__str__ method, but is there a cleaner method?
You can do something like
L = R.weight_lattice()
L._print_options['prefix"]="your_prefix_of_choice"
There may be a more elegant way than just reaching into the private "_print_options" attribute.
EDIT: There is indeed a more elegant way:
L.print_options(prefix="b")
Note that this design is fundamentally conceptually wrong: The "weight lattice" is a UniqueRepresentation object and as such absolutely needs to be immutable (unrelated code could end up with a reference to the same object). So, changing the prefix amounts to scribbling in a global variable. You may find that a weight lattice that has been constructed in a completely unrelated setting also changes print prefix.
Asked: 2018-11-14 15:53:24 +0100
Seen: 288 times
Last updated: Nov 14 '18
Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
