I'm working with the character table of the centralizer for Z4: G = CyclicPermutationGroup(4) followed by t = G.character_table() yields
[ 1 1 1 1]
[ 1 -1 1 -1]
[ 1 -zeta4 -1 zeta4]
[ 1 zeta4 -1 -zeta4]
I'm trying to simplify results of calculations using this table for insertion into numpy arrays (these results simply involve adding and multiplying elements of the table). For example, let us consider f = t[1,3] - 4 * t[3,3] which evaluates to -4*zeta4 - 1. I've tried using AlgebraicConverter and .arithmetic() functionalities.
a = AlgebraicConverter(QQbar)
a.arithmetic(f, f.operator())
I obtain the following error
AttributeError: 'sage.rings.number_field.number_field_element.NumberFieldElement_absolute' object has no attribute 'operator'
Advice on how to remedy this error or how to follow a better approach would be greatly appreciated.
