THIS volume is intended primarily for students of engineering, and is the outcome of ‘out-of-hour’ courses given at the Bell Telephone Laboratories. It embraces the significance and origin of differential equations, linear equations of the first and higher orders, systems of linear equations and other equations of a higher order than the first. The treatment is mainly practical, but a little elementary theory is included.
Elementary Differential Equations.
By Dr. Thornton C. Fry. Pp. x + 255. (London: Macmillan and Co., Ltd., 1929.) 10s. 6d. net.