The Isograph

Duration: 1 reel

Year Published: 1938

Creator: Bell Telephone Laboratories, New York (apply to Miss L. E. Smith, Librarian)

Format: 16mm

Sound: Silent

Description: Documents an instrument developed and used at Bell Telephone Laboratories for quickly finding the real or complex roots of a polynomial. Dr. Fry, the instrument's designer, is shown operating the machine to solve a polynomial, making the film especially relevant to teachers, engineers, and college students studying calculus, theory of equations, or complex variable theory.

Complete Record: Category: Advanced Mathematics Rental price: Loaned free Format: 16mm silent

Metadata Source:Mathematics Films — The Mathematics Teacher (January 1941)