person
Davydov (geometry textbook author)
Davydov
also: Давыдов
Author of a standard 19th-century Russian school geometry textbook, from which Fendrikov claims to have studied.
Reading notes
- The Examination for Rank §52 Davydov's book
A standard 19th-century Russian school textbook of geometry, of the kind widely used (and here, comically, over-studied) by provincial examinees.