Ranjan RoyRanjan Roy is the Ralph C. Huffer Professor of Mathematics and Astronomy at Beloit College, Wisconsin, and has published papers and reviews on Riemann surfaces, differential equations, fluid mechanics, Kleinian groups, and the development of mathematcs. He has received the Allendoerfer Prize, the Wisconsin MAA teaching award, and the MAA Haimo Award for Distinguished Mathematics Teaching, and was twice named Teacher of the Year at Beloit College. He co-authored Special Functions (2001) with George Andrews and Richard Askey and co-authored chapters in the NIST Handbook of Mathematical Functions (2010); he also authored Elliptic and Modular Functions from Gauss to Dedekind to Hecke (2017) and the first edition of this book, Sources in the Development of Mathematics (2011). Read More Read Less