As most writers will testify, writing a book entails a fair amount of hard work. It follows that one needs a reason for undertaking the task in the first place. The easiest motivation to understand for writing a book, and perhaps the most common one, is the desire for monetary reward. I do not know what inspired J. K. Rowling to write her...

Differential equations first appeared in the late seventeenth century in the work of Isaac Newton, Gottfried Wilhelm Leibniz, and the Bernoulli brothers, Jakob and Johann. They occurred as a natural consequence of the efforts of these great scientists to apply the new ideas of the calculus to certain problems in mechanics, such as the paths of...

This new Fourth Edition of Principles of Lasers is so thoroughly updated and expanded that it is virtually a whole new book. But the text’s essential mission remains the same: to provide a wide-ranging yet unified description of laser behavior, physics, technology, and current applications. Dr. Svelto emphasizes the physical...