All tools

Rank Hunter Family Builder

Describe a one-parameter elliptic-curve family. Download its plugin.json and family.json files for Rank Hunter's plugins/families/ directory.

01 / Identity

Lowercase letters, digits and underscores; starts with a letter.
Choose a rational parameter value giving a smooth curve.
A claim only; the builder does not verify rank.

02 / Weierstrass model

Enter the five exact Sage expressions for [a1, a2, a3, a4, a6] in your parameter. Use * for multiplication and ^ for powers.

03 / Exact sections (0)

Add rational section coordinates only when known exactly. Rank Hunter checks them during validation; this page does not prove they lie on the curve.