Excerpt from A Primer of Quaternions<br><br>The Theory of Quaternions is due to Sir William Rowan Hamilton Royal Astronomer of Ireland who presented his first paper on the subject to the Royal Irish Academy in 1843. His Lectures on Quaternions were published in 1853 and his Elements in 1866 shortly after his death. The Elements of Quaternions by Tait is the accepted text-book for advanced students.<br><br>About the Publisher<br><br>Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com<br><br>This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work preserving the original format whilst repairing imperfections present in the aged copy. In rare cases an imperfection in the original such as a blemish or missing page may be replicated in our edition. We do however repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.