Langer R.E. A First Course in Ordinary Differential Equations

John Wiley & Sons, Inc., 1954. — 249 p.Skillfully organized introductory text examines origin of differential equations, then defines basic terms and outlines general solution of a differential equation. Subsequent sections deal with integrating factors; dilution and accretion problems; linearization of first order systems; Laplace Transforms; Newton’s Interpolation Formulas, more.