Bővebb ismertető
INTRODUCTION
This book is written for those who wish to gain a practical working knowledge of arithmetic, and particularly for those who wish to do so without the guidance of a teacher. As a "Teach Yourself" book, it differs from the majority of arithmetic text-books in that it explains in unusual detail the actual processes involved in the various kinds of arithmetical calculation. Whereas most books contain the minimum amount of expository matter and concentrate on the orderly assembly of graded examples for working, this book makes exposition a primary aim, while also providing the numerous examples which the student must have if he is to confirm what he has learnt.
The subject is developed comprehensively from its beginnings, the elementary processes being dealt with in the first nine chapters. Chapter lo, on arithmetical graphs, includes a very short account of statistical applications. There then follow three chapters of a practical nature which should be of use as an elementary basis for engineering and allied courses. Chapters 14-16 are devoted to Civil Arithmetic, and it is hoped that these will prove of help to almost all those who have any source of income: some of the simpler aspects of Income Tax and insurance are explained in a straightforward manner, together with the details of Stock Exchange procedure. The last chapter serves as an introduction to the arithmetical background of certain kinds of electronic computing macifiine, which are now becoming so important. References are made here and there to other works which can be used as aids to further study.
The author wishes to express his gratitude to Mr. E. A. Side (who has read the entire mcinuscript), for his invaluable suggestions; to Mr. W. L. Elmes, who read the