Book excerpt: This book has been designed specifically for the Gujarat Technological University (GTU) syllabus and students of engineering in their Third Semester. Seven dedicated chapters are set to sequentially cover each module of the syllabus and are compounded by the ';tutorial technique', i.e., theory followed by example(s) so that the learner develops an increased sense of conscious intellection. This exceptional mix of theory and application caters to all types of requirements, be it the student or the teacher. Not only is the syllabus rigorously followed, but each topic has also been treated with the end-examination in sight. Concepts are well-aided with solved examples (of different complexities) so that every learner understands the topic at hand.