This textbook is written and designed with utmost care bearing the needs of the first year BE/BTech students in mind. Giving greatest attention to the prescribed syllabus of Gujarat Technical University, the book has a comprehensive coverage. All efforts have been made to make the concepts clear to the students. In each unit, the topics and their sub topics are carefully arranged and elaborately discussed from the elementary level. Illustrative examples have been given wherever necessary. Continuity in the development of subject matter and uniformity in the style of presentation has been specifically taken care of for the convenience of the students. At the end of each chapter, a number of assignment problems, all the possible short questions with answers and some descriptive answer questions have been provided. This edition contains a number of examples with solutions. University question papers of the recent years have also been given. Although proper care has been taken during the preparation and proof reading of the manuscript, some errors may still have crept in. Any omissions, errors and suggestion brought to the knowledge of the author will be gratefully acknowledged and would be rectified in the subsequent edition. G Vijayakumari