Math 279 Differential Equations I. Course Description An introduction to ordinary differential equations and their applications. Topics include first-order equations, second- and higher- order linear equations, vibrational motion, electrical circuits, power series solutions, Laplace transforms, systems of equations, numerical methods, and matrix methods for systems of equations. II. Prerequisites Math 173-174 (Calculus with Analytic Geometry I-II) or equivalent. III. Introduction This course is an introduction to ordinary differential equations and their applications. In this course, it is expected that the student will not only become proficient in solving many classes of differential equations by hand calculations, but will become familiar with how to solve differential equations using symbolic manipulation software available for computers today. Additionally, the student should acquire an ability to model real world situations in terms of differential equations. IV. Instructional Materials Textbook: A First Course in Differential Equations with Modeling Applications (6th edition) by Dennis G. Zill; Brooks/Cole (ITP) Publishing Company, 1997. Optional: Student’s Solutions Manual by Warren S. Wright. Required: Scientific calculator or graphing calculator (preferred). V. COURSE CONTENT Chapter One: Introduction to Differential Equations 1.1 Definitions and Terminology 1.2 Initial-Value Problems 1.3 Differential Equations as Mathematical Models Chapter Two: First-Order Differential Equations 2.1 Separable Variables 2.2 Exact Equations 2.3 Linear Equations 2.4 Solutions by Substitution Chapter Three: Modeling with First-Order Differential Equations 3.1 Linear Equations 3.2 Nonlinear Equations Chapter Four: Differential Equations of Higher Order 4.1 Preliminary Theory: Linear Equations 4.2 Reduction of Order 4.3 Homogeneous Linear Equations with Constant Coefficients 4.4 Undetermined Coefficients-Superposition Approach 4.6 Variation of Parameters 4.7 Cauchy-Euler Equation 4.8 Systems of Linear Equations 4.9 Nonlinear Equations Chapter Six: Series Solutions of Linear Equations 6.1 Review of Power Series; Power Series Solutions 6.2 Solutions About Ordinary Points 6.3 Solutions About Singular Points Chapter Seven: Laplace Transforms 7.1 Definition of the Laplace Transform 7.2 Inverse Transform 7.3 Translation Theorems and Derivatives of a Transform 7.4 Transforms of Derivatives, Integrals, and Periodic Functions 7.5 Applications Chapter Eight: Systems of Linear First Order Differential Equations 8.1 Preliminary Theory 8.2 Homogeneous Linear Systems with Constant Coefficients 8.3 Variation of Parameters 8.4 Matrix Exponential Chapter Nine: Numerical Methods for Ordinary Differential Equations 9.2 Euler Methods 9.3 Runge-Kutta Methods Assignments and Test Schedule for A First Course in Differential Equations by Zill (6th edition) SECTION PAGE ASSIGNMENT 1.1 1.2 1.3 8 15 25 1-11 odd, 15,17,19,23,31,37,45,49 1-17 odd 1-11 odd 2.1 2.2 2.3 2.4 35 42 51 57 1,3,5,9,11,23,31,33,39,41,43 1-17 odd,25,27 1-21 eoo, 27,37,41,45 11,7,9,11,13,15,17,21 3.1 TEST 1 68 11,3,5,9,13,21 4.1 4.2 4.3 4.4 4.6 4.7 4.8 4.9 TEST 2 106 112 119 130 146 152 160 165 1,5,9,11,15,17,21,23,25,33 1-21 eoo 1-41 eoo 1,5,11,13,19,23,29,33 1,7,11,15,21,25 1,3,5,7,11,15,19,23,25 1,3,9,13 3,5,7 6.1 6.2 6.3 221 229 242 1,3,5,7,11,15,19 3,7,15,17 1-11 odd, 23 7.1 7.2 7.3 7.4 7.5 265 272 281 284 301 11,15,19-37 odd 1-33 odd 1-21 odd,37-41 odd formulas 1,2,3 1-13 odd, 17 8.1 8.2 8.3 TEST 3 327 341 347 1,3,7-23 odd 1,5,7,19,23,31 1,5 tba