Differential calculus/ B.C. Das and B.N. Mukherjee

This book is prepared with a view to be used as a textbook for the B. A. and B. Sc. students of the Indian Universities. It has been tried to make the expositions of the fundamental principles clear as well as concise without going into unnecessary
details; and at the same time an attempt has been made to make the treatment as much rigorous and up-to-date as possible within the scope of the elementary work. Proofs of certain important fundamental results and theorems which are assumed in the earlier chapters of the hook for the convenience of the beginners and average students have been given
in the Appendix. A brief account of the theory of infinite series, especially the power series, is given in the Appendix in order to emphasise their peculiarity in the application of the principles of Calculus. Important formulae of this book are given in the beginning for ready reference. A good number of typical examples have been worked out by way of illustrations. Many varied types of examples have been given for exercise in order that the students might acquire a good grasp of the applications of the principles of Calculus. University questions of recent years have been added at the end to give the students and idea of the standard of the examination.