About the Book Pythagorean triples, like 3, 4, and 5 have been a fascination for thousands of years. Now for the first time a simple elegant system, based on these triples, has been developed which reveals unexpected applications in many areas of pure and applied mathematics. These include general applications in trigonometry, coordinate geometry (in 2 and 3 dimensions), transformations (in 2 and 3 dimensions), simple harmonic motion, astronomy etc. The easy triple method links these areas and replaces large numbers of apparently unconnected formulae with a single device. This book fully explains the various applications and most of it should be accessible to anyone with the basic understanding of mathematics which a school leaver should have. About the Author KENNETH WILLIAMS has taught Vedic mathematics at several colleges and schools in the UK, has been researching Vedic mathematics since 1971 and has written fifteen books on the subject covering a wide range of topics. He has given many courses/seminars/talks around the world and has done a great deal to disseminate and promote Vedic Mathematics as well as opening up many new areas of research. Preface The unchanging laws of number have always been a source of delight and inspiration. Particularly attractive are the Pythagorean triples which have so many elegant and interesting properties. But these triples are also of great practical through the theorem of Pythagoras the triples link the three main branches of number, algebra and geometry. This appears to be the first time that these triples have been developed into a useful structure, having applications in trigonometry, transformations in 2 and 3 dimensions, coordinate geometry in 2 and 3 dimensions,