Encyclopedia of Integral Calculus is intended to the students appearing for undergraduate examinations conducted by different Indian Universities. Many efforts have been made to present this subject matter in a manner as to enable a student of ordinary caliber to solve the problems without any external to the student of higher caliber in solving challenging problems. Each chapter of this Encyclopedia contains Complete Theory' and large number of Solved Examples, Diagrams and Basic concepts. While preparing this Encyclopedia, the traditional approach of learning Mathematics is not sacrificed. On the contrary, care has been taken to provide an extensive foundation of knowledge required for the university examination. It is hoped that the Encyclopedia would be highly useful for the students and teachers of mathematics. Students aspiring to successfully accomplish engineering and also those preparing for various competitive examinations are likely to find this book of much help.