#20973: Cartan type Aoo
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Reporter: andrew.mathas | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-7.3
Component: combinatorics | Resolution:
Keywords: Cartan type, A | Merged in:
infinity |
Authors: Andrew Mathas | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/andrew.mathas/cartan_type_aoo | 3c5370673410e49fc0acbff86d1ba443c72a44a8
Dependencies: | Stopgaps:
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Comment (by tscrim):
Also, this sentence is vague:
{{{
In sage `oo` is the same as `+Infinity` so `NN` and `ZZ` are used to
differentiate between the `A_{+\infty}` and `A_{\infty}` root systems.
}}}
In particular, what does `oo` do? I would write the entire docstring as:
{{{#!python
class CartanType(CartanType_standard, CartanType_simple):
r"""
Define the Cartan type `A_{\infty}`.
We use `NN` and `ZZ` to explicitly differentiate between the
`A_{+\infty}` and `A_{\infty}` root systems. While `oo` is
the same as `+Infinity` in Sage, it is used as an alias
for `ZZ`.
"""
}}}
I would also move all of the `EXAMPLES::` from the `__init__` into the
class-level doc above (but leave the ones in `TESTS::` in `__init__`).
--
Ticket URL: <https://trac.sagemath.org/ticket/20973#comment:22>
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