// Magma code for working with elliptic curve isogeny class 228672.t // Define the isogeny class: E := EllipticCurve([0, 0, 0, -275916, 55914896]); IsogenousCurves(E); // Mordell-Weil rank: Rank(E); // q-expansion of modular form: ModularForm(E); // List of curves in the isogeny class: IsogenousCurves(E);