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The title of this book gives the clue to our main aim, which is to initiate the reader into the realm of differential and integral calculus and, by applying these methods to the more important divisions of physics, to demonstrate the significance and power of higher mathe­matics. In this book, the student is regarded as a friend and ally who puts his faith in the teacher and the textbook and wishes ardently to make use of and apply to nature and technology the mathematical techni­ques offered to him. Comprehension of the subject expands as the result of analyzing examples and applications. In the strictly logical approach, the question of the significance and usefulness of the theo­ rems studied remains in the background. In the present text, by con­ trast, we bring to the fore the mathematical ideas and their relation­ ship with the study of nature. The notorious pitting of poets against physicists (mathematicians too) is a figment of the imagination of the poet B. Slutsky. In mathe­matics there is more poetry than any poet ever imagined. The history of science is proof that good mathematics is prophetic: mathematical analysis of the known opens up the path into the realm of the unknown and leads to new physical notions. In “Higher Mathematics for Beginners” I strove towards a const­ructive approach, to the eliciting of the meaning and aims of mathe­matical concepts and attempted, at least in part, to convey the spirit of the heroic period when these notions were born. The last two chapters (Dirac’s Remarkable Delta Function and What Next) are entirely different from the remainder of the book. The style too is quite changed. The aim there is to give the reader a feeling (of necessity, very superficial) of what complicated things lie ahead. Translated from the Russian by George Yankovsky First published 1973 Revised from the 1972 Russian edition

Zeldovich Mathematics

-functions and graphs; the concepts of a derivative and an integral; computation of derivatives and integrals; the application of differential and integral calculus to geometry and the investigation of functions; water flow. radioactive decay and nuclear fission. absorption of light; mechanics; the thermal motion of molecules and the distribution of air density in the atmosphere; electric circuits and oscillatory phenomena in them; dirac's remarkable delta function; conclusion; answers and solutions; appendix-