# Oscar code for working with elliptic curve 3.3.316.1-16.4-a2
# If you have not already loaded the Oscar package, you should type "using Oscar;" before running the code below.
# (Note that not all these functions may be available, and some may take a long time to execute.)


# Define the base number field: 
Qx, x = polynomial_ring(QQ); K, a = number_field(Qx([2, -4, -1, 1]))

# Define the curve: 
E = elliptic_curve([K([-3,0,1]),K([1,0,0]),K([1,1,0]),K([-303,-44,68]),K([269,16,-73])])

# Compute the conductor: 
conductor(E)

# Compute the norm of the conductor: 
norm(conductor(E))

# Compute the discriminant: 
discriminant(E)

# Compute the norm of the discriminant: 
norm(discriminant(E))

# Compute the j-invariant: 
j_invariant(E)