Its a Nonlinear World Preface Part I. World of Mathematics 1. World of Nonlinear Systems 2. World of Nonlinear ODEs 3. World of Nonlinear Maps 4. World of Solitons Part II. Our Nonlinear World 5. World of Motion 6. World of Sports 7. World of Electromagnetism 8. World of Weather Prediction 9. World of Chemistry 10. World of Disease 11. World of War Bibliography Index. Drawing examples from mathematics physics chemistry biology engineering economics medicine politics and sports this book illustrates how nonlinear dynamics plays a vital role in our world. Examples cover a wide range from the spread and possible control of communicable diseases to the lack of predictability in long range weather forecasting to competition between political groups and nations. After an introductory chapter that explores what it means to be nonlinear the remainder of Part I covers nonlinear mathematical concepts such as fixed points limit cycles fractals chaos bifurcations and solitons and nonlinear diagnostic tools such as fixed point analysis bifurcation diagrams and Lyapunov exponents to name a few. Part II of the text presents illustrative examples of nonlinear dynamics that are highly relevant to the contemporary world. At the end of each chapter a wide variety of problems are presented which extend the ideas developed in the chapter as well as allow the reader to explore other aspects of our nonlinear world. The mathematical level of the text assumes good working knowledge of basic calculus and prior exposure to ordinary differential equations and the wave and diffusion equations. The book may be used at the undergraduate or graduate level to prepare science and engineering students for problems in the real world or for self study by practicing scientists and engineers. The more casual reader can simply read the book for intellectual enjoyment.