Excerpt from Alternating Currents in Theory and PracticeMany students, in fact the majority, desire to take up the study of alternating currents with a very inadequate knowledge of mathematics. In view of this fact, which is to be greatly regretted and which constitutes one of the greatest difficulties of students and teachers alike, the calculus has not been used in the body of the book, it has, however, been used in a few foot notes, mainly with the idea of showing students what excellent examples of the use of elementary calculus are furnished by the subject under consideration.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.