I want to compute the different ideal for Q(3√2,ζ3)/Q(3√2) where ζ3 is a n-th root of unity.
But, at first, I tried to compute one more easier case for Q(√−5)/Q. It might be (2√−5).
My attempt is following:
x=polygen(ZZ, 'x')
K.<a>=NumberField(x^2+5)
gp(K.diff)
But this makes an error. Could you show me the correct code?