The new fourth edition retains the original purpose which has made this book such a large success through every one of its previous editions: to effectively help its readers solve a wide array of mathematical problems specifically related to mechanical work. Aside from its unique compilation of mathematical problems, this book is renowned for its ability to duplicate, as far as possible, personal instruction. Its usefulness as a self-learning guide for the mathematics of mechanical problems is therefore unexcelled. The entire text has been carefully reviewed and edited where necessary for greater clarity and accuracy. Includes new problem materials. At the request of many users, it now includes trigonometric and common logarithm tables.