Great Crochet Gift Book by American School Of Needlework
The orthogonality of functions has been exploited in communications since its very beginning. Conscious and extensive use was made of it by KOTEL' NIKOV in theoretical work in 1947. Ten years later a considerable number of people were working in this field rather independently. However, little experimental use could be made of the theo- retical results before the arrival of solid state opera- tional amplifiers and integrated circuits. A theory of communication based on orthogonal functions could have been published many years ago. However, the only useful examples of orthogonal functions at that time were sine-cosine functions and block pulses, and this made the theory appear to be a complicated way to derive known re- sults. It was again the advance of semiconductor techno- logy that produced the first really new, useful example of orthogonal functions: the little-known Walsh functions. In this book emphasis is placed on the Walsh functions, since ample literature is available on sine-cosine func- tions as well as on block pulses and pulses derived from them.
Cassandra Eason is an internationally renowned expert on crystals and crystal healing. She has written for the Guardian, the Sunday Telegraph, the Daily Mail, and Good Housekeeping in the UK; Woman's World in the US; and Woman's Day and New Ideas in Australia. Cassandra has made numerous appearances on television in America on Unsolved Mysteries, Sightings, and The Other Side. Cassandra has published more than 80 books, including the international bestsellers Every Woman a Witch (W. Foulsham & Co.), The Complete Guide to Divination (Piatkus Books), and The Illustrated Directory of Healing Crystals (Collins & Brown).
| SKU | Unavailable |
| ISBN 13 | 9780806968964 |
| ISBN 10 | 0806968966 |
| Title | Great Crochet Gift Book |
| Author | American School Of Needlework |
| Condition | Unavailable |
| Binding Type | Paperback |
| Publisher | Union Square & Co. |
| Year published | 1988-10-01 |
| Number of pages | 144 |
| Cover note | Book picture is for illustrative purposes only, actual binding, cover or edition may vary. |
| Note | Unavailable |