Vittal, P. R. Analytical geometry : 2D and 3D, 2013: title page (P.R. Vittal) About the author: (Professor of Mathematics at Ramakrishna Mission Vivekananda College, Chennai, from where he retired as Principal in 1996. He was a visiting professor at many North American colleges. Now a visiting professor at the University of Madras; Institute of Chartered Accountants of India, Chennai; The Institute of Technology Management, Chennai; and the National Management School, Chennai.)