in the notebook Stable representation, the line In[26]

%time I=W.stable(z, slope=1/3)

refers to W that has not been defined, probably it's Q instead

EDIT: this is fixed in #7

One could maybe make good use of

sage: B = matrix([[0,1,2],[-1,0,3],[-2,-3,0]])
sage: q = ZZ['q'].gen()
sage: R.<x,y,z> = algebras.qCommutingPolynomials(q, B)
sage: R.formal_series_ring()
Lazy completion of q-commuting polynomial ring in x, y, z over Univariate Polynomial Ring in q over Integer Ring with matrix:
[ 0  1  2]
[-1  0  3]
[-2 -3  0]

?

doctests do not pass (tried with sagemath SageMath version 10.0.beta6)

• First a lot of annoying deprecations in graph, that should be cared by adding sort=False in call to edges.
• then failing doctests computing with much larger precision than expected.