Thanks for purchasing this book on essential mathematic formulas for college. This volume has been carefully complied to include most of the common formulas that are used for problem solving and also tested in exams. This books should be useful both for classroom exercises and also for exams. This should serve as a quick reference when preparing for SAT , GRE or other exams when mathematical knowledge is tested across several areas, specifically for the key concepts and associated formulaes.I sincerely hope this is of use to the aspiring student and also teaching professionals. If you find it useful, please encourage a budding publisher with a few good reviews.ThanksJohn Smith (Feb 2012)