X0 2 modular curve
= X0 2 modular curve
{c}
{title2=$X_0(2)$}
The compact quotient for the <Gamma 0 congruence subgroup> at level two has projective index three, two <modular cusps> of <cusp widths> one and two, one order-two elliptic orbit and no order-three elliptic orbit. It has genus zero. It differs from the level-two principal-congruence curve for $\Gamma(2)$, which has three <modular cusps>.