The topics range from elementary to advanced - from algebra, trigonometry and calculus to vector analysis, Bessel functions, Legendre polynomials, and elliptic integrals.

    The rapid maturation of PHP has created a skeptical population of users from more traditional enterprise languages who question the readiness and ability of PHP to scale, as well as a large population of PHP developers without formal computer science backgrounds who have learned through the hands-on experimentation while developing small and midsize applications in PHP. While there are many books on learning PHP and developing small applications with it, there is a serious lack of information on scaling PHP for large-scale, business-critical systems. Schlossnagle's Advanced PHP Programming fills that void, demonstrating that PHP is ready for enterprise Web applications by showing the reader how to develop PHP-based applications for maximum performance, stability, and extensibility.

    Based on B. P. Lathi's widely used book, Linear Systems and Signals, it features additional applications to communications, controls, and filtering as well as new chapters on analog and digital filters and digital signal processing. Lathi emphasizes the physical appreciation of concepts rather than the mere mathematical manipulation of symbols. Avoiding the tendency to treat engineering as a branch of applied mathematics, he uses mathematics to enhance physical and intuitive understanding of concepts, instead of employing it only to prove axiomatic theory. Theoretical results are supported by carefully chosen examples and analogies, allowing students to intuitively discover meaning for themselves.

    This edition is designed to attain a thorough understanding of this vital branch of chemistry.

    Billy Graham says, "Angels have a much more important place in the Bible than the devil and his demons." In this classic, Dr. Graham combines the fascinating experiences of those who are certain they have been attended by angels with what the Bible says about angels from on high. Here is ringing assurance to all Christians that through angels God is present for His People. We can take comfort in the fact that, with the host of angels at God's call, we are not alone. Be encouraged by this book on God's Secret Agents.

    None is more readily and inexpensively corrected. And none is more often untreated, and even unsuspected.Hypothyroidism -- low thyroid function -- is one of the gland disturbances that many people suffer from without even realizing it. It can be the cause of low energy or constant fatigue that is one of the most common complaints brought to doctors. It may be responsible for chronic headaches, repeated infections, unyielding skin problems, or circulatory difficulties. Even more frightening, it can be a major factor in heart disease, lung cancer, and emphysema. And it is responsible for many emotional and mental disturbances. Hypothyroidism: The Unsuspected Illness explains low thyroid function in easy, understandable language. It tells how it may be affecting your health and your life.Dr. Broda Barnes and Lawrence Galton tell what the thyroid gland is, how it works, the problems its dysfunction can induce. They detail case histories of patients, often thought hopeless, whose problems were discovered to be related to hypothyroidism and were cured by Dr. Barnes's simple effective techniques. And they discuss whether you too may be hypothyroid, affected by a condition even a physician may not recognize.Included is a simple test you can make at home to discover if hypothyroidism may be the real, previously unsuspected cause of your ill health.If you know you are hypothyroid, Hypothyroidism: The Unsuspected Illness will answer your questions about your condition. If you suspect you maybe, if you are unsure what may be causing those chronic headaches, infections, fatigue and low energy, it may help you find the answer.

    The books have been organized according to major historical periods, as they would be in any major Western history text. Each title is linked with the Amazon page where the book is offered. Simply click on the title that interests you and then download it to your computer. Kindle users may be able to use the same approach or they may simply search for the titles using the "search" page (scroll down to Kindle Store) and then download at no charge. If the first approach will not work, the second will.Mike Caputo (Editor)WHAT OUR READERS SAY"Fascinating." (S.F.S. reader)"A History readers' delight." (Amazon customer)"Great For Historical Knowledge." (C.E. reader) "Great books. I am glad someone took the time to curate this." (Adam, reader)"I love all of the older history volumes available on Amazon.This is a well constructed list..." (C.B. Reader)"...a good resource..." (A.A. Reader)"A fine list of free history books for the Kindle on Amazon."(Kindle Customer)"Would and do recommend to anyone who spends way too much time as I do, looking at books." (Kindle customer)"Great information here." (Kindle customer)"A great selection for research and reference. Many interesting books on multiple topics that were written as it was happening, not a researchers opinion of what they think happened way back when." (Kindle customer)