books.google.com.au - Important study focuses on the revival and assimilation of ancient Greek mathematics in the 13th?16th centuries, via Arabic science, and the 16th-century development of symbolic algebra. This brought about the crucial change in the concept of number that made possible modern science. Includes a translation...http://books.google.com.au/books/about/Greek_mathematical_thought_and_the_origi.html?id=g1FOGSKSo4cC&utm_source=gb-gplus-shareGreek mathematical thought and the origin of algebra