The Coleman integral is a
-adic
line integral. Double Coleman integrals on elliptic curves appear in Kim’s nonabelian
Chabauty method, the first numerical examples of which were given by the author,
Kedlaya, and Kim. This paper describes the algorithms used to produce
those examples, as well as techniques to compute higher iterated integrals on
hyperelliptic curves, building on previous joint work with Bradshaw and
Kedlaya.