Madhava of Sangamagramma
Over at the Olin Reference Blog, Lynn mentions that a student was “looking for books or articles” on the mathematician Madhava, and that various specialized and general reference sources weren’t helpful, including Britannica.
While there’s not a lot of coverage of Madhava the mathematician at Britannica.com, a a quick search yielded a brief mention of Madhava the mathematician in the analytic trigonometry section of the trigonometry article and a suitable internet link at Madhava of Sangamagramma, which includes a number of good references in the bibliography.
Lynn, if your patrons have access to school.eb.com or search.eb.com, they’ll find similiar information there.
Also, Wikipedia currently has about a paragraph on Madhava and points to the same internet link that Britannica does. The Wikipedia text on Madhava seems largely cribbed from that article.