First published in 1940, this guide explains the rudiments of calculus, covering the basic concepts of differentiation and integration and then applying them to solving mathematical problems. It starts from a very basic level and quickly builds up to a more advanced stage. Stressing the ideas and applications of statistics through relevant models, this book is an introduction to calculus for students and professionals from a wide variety of disciplines. Guidance is given with the assumption of a limited maths background and access to an inexpensive calculator is anticipated. Exercises throughout the text are graded, with sample answers provided.