Why does this error out?
abc,ABC=var('abc ABC')
aa=[abc^2,ABC];print(aa)
SR(aa[0:1])
After a lot of reporting
TypeError: unable to convert [abc^2, ABC] to a symbolic expression
The original problem was trying to access the ideal .. groebner_basis()
The Groebner part worked but I want to manipulate the output, and I got this error.
So far, this code fails on 9.7, 9.8, 10.0
A pointed reference would be fine sorry