Related online material
My books
- Flansburg, S., Math Magic: The Human Calculator Shows How to Master Everyday Math Problems in Seconds, William Morrow and Company, Inc., New York, 1993, ISBN 0-688-10476-2.
- Sawyer, W. W., Mathematician's Delight, Penguin Books, 1969 (1943).
- Zippin, L., Uses of Infinity, The L. W. Singer Company, New Mathematical Library, Random House, Fifth Printing, 1962, Library of Congress Catalog Card Number: 61-12187.