Isaac is a department for education project at the university of cambridge that develops understanding and confidence through problem solving in the physical sciences, by combining accessible and concise print resources with a state of the art online study tool. this book is a co-publication between periphyseos press/isaac and cambridge university press. essential pre-university mathematics for sciences helps you master mathematics for final-year school courses and entry-level university and the maths needed for physics, chemistry and other sciences. chapters 1-6 cover essential techniques in mathematics for sciences, offering both core practice and more advanced problems. chapter 7 covers mathematical approaches to scientific problems, including population, money, nuclear chain reactions and random walks in gases and galaxies-each illustrating the power of mathematics. all problems can be answered on the isaac online platform. registration is free and gives both students and teachers personalised support through a sophisticated online marking system for all problems.