 The p-adic expansion of rational numbers by Keith Conrad

By Keith Conrad.

Online text: kconrad.math.uconn.edu/blurbs/gradnumthy/rationalsinQp.pdf

Standalone authored expository note. The inspected copy is undated; no publication date is inferred from the search engine or hosting path. It explicitly writes p-adic expansions with low-order terms first.

Cited passages: §1, printed p. 1: p-adic rational expansions and explicit low-order-first convention; §3, Theorem 3.1, printed pp. 3–5: eventual periodicity.