Thinking About Equations provides an accessible guide to developing an intuitive understanding of mathematical methods and, at the same time, presents a number of practical mathematical tools for successfully solving problems that arise in engineering and the physical sciences. \r\nWorked-out problems from various fields of study illustrate mathematical concepts and techniques and are accompanied by a comprehensive solution, explanation, and commentary. Eight succinct chapters provide thorough topical coverage, including: \r\n•Approximation and estimation\r\n•Isolating important variables\r\n•Generalization and special cases\r\n•Dimensional analysis and scaling\r\n•Pictorial methods and graphical solutions\r\n•Symmetry to simplify equations