About the Book :

Our advice to a user of the book is: If you are at a loss, have a look at the relevant short hints,
if any, and only if all else fails take a peek at the answers. We hope that this will help you in most
of the situations and help you to check your answer after you have completed the solution. Some of
the problems are definitely difficult. If you have completely given up, have a look at the solution. A
number of problems can be solved in more than one way and such alternative solutions of a problem
help the student to have a better understanding. We have tried to solve a number of problems in more
than one way and this is indicated in the hints and answers chapter. If you have already solved a
problem in one way, you may have a look at the alternative way of the solution. We are sure that you
will derive pleasure from it. Moreover, we hope that the notes to some of the problems will provide
you with some excitement.