Book of Qi Book of Qi The Book of Qi (Qí Shū) or Book of Southern Qi (Nán Qí Shū) is a history of the Chinese dynasty Southern Qi covering the period from 479 to 502, and is one of the Twenty-Four Histories of Chinese history. It was written by Xiao Zixian during the succeeding Liang Dynasty, and is unique in that Xiao Zixian was the only author of any of the Twenty-Four Histories to be a direct descendant of the founder of the dynasty being written about. Specifically, he was a grandson of Southern Qi's founder Emperor Gao of Southern Qi. It
What Is Mathematics? Expectations" by Charles Dickens. According to Constance Reid, Courant finalized the title after a conversation with Thomas Mann. What Is Mathematics? What Is Mathematics? is a mathematics book written by Richard Courant and Herbert Robbins, published in England by Oxford University Press. It is an introduction to mathematics, intended both for the mathematics student and for the general public. First published in 1941, it discusses number theory, geometry, topology and calculus. A second edition was published in 1996 with an additional chapter on recent progress in mathematics, written by Ian Stewart. The book was based on Courant's course material. Although