# Properties

 Label 6930b Number of curves 2 Conductor 6930 CM no Rank 1 Graph # Related objects

Show commands for: SageMath
sage: E = EllipticCurve("6930.e1")
sage: E.isogeny_class()

## Elliptic curves in class 6930b

sage: E.isogeny_class().curves
LMFDB label Cremona label Weierstrass coefficients Torsion order Modular degree Optimality
6930.e2 6930b1 [1, -1, 0, -75, 325] 2 1536 $$\Gamma_0(N)$$-optimal
6930.e1 6930b2 [1, -1, 0, -1275, 17845] 2 3072

## Rank

sage: E.rank()

The elliptic curves in class 6930b have rank $$1$$.

## Modular form6930.2.a.e

sage: E.q_eigenform(10)
$$q - q^{2} + q^{4} - q^{5} + q^{7} - q^{8} + q^{10} + q^{11} - 2q^{13} - q^{14} + q^{16} - 2q^{17} - 4q^{19} + O(q^{20})$$

## Isogeny matrix

sage: E.isogeny_class().matrix()

The $$i,j$$ entry is the smallest degree of a cyclic isogeny between the $$i$$-th and $$j$$-th curve in the isogeny class, in the Cremona numbering.

$$\left(\begin{array}{rr} 1 & 2 \\ 2 & 1 \end{array}\right)$$

## Isogeny graph

sage: E.isogeny_graph().plot(edge_labels=True)

The vertices are labelled with Cremona labels. 