Darkness is falling and only Contessa Sofia can turn the tide in this thrilling final installment of the Wave trilogy. In the 1347th year of Our Lady the engineers of Concord defeated the fractious city-state of Rasenna using the magical science of Wave Technology. The City of Towers fought back, and for a while Concord's plans for domination were halted. But First Apprentice Torbidda regrouped, and reformed Concord to his own design. Now he is in absolute control, and plotting the final battle that will pacify Etruria . . . permanently. Contessa Sofia Scaligeri could rally her people once again, but she is far away in the Crusader Kingdom of Akka, trapped with her son, in thrall to the tyrant Queen Catrina. Darkness is falling. The final battle must be fought and the tide must be turned, lest evil reign forever.

CD-ROM contains: WINPHI software.

In Crete during World War II, Alenka, a young woman who fights with the resistance against the brutal Nazi occupation, finds herself caught between her traitor of a brother and the man she loves, an undercover agent working for the Allies. May 1941. German paratroopers launch a blitzkrieg from the air against Crete. They are met with fierce defiance, the Greeks fighting back with daggers, pitchforks, and kitchen knives. During the bloody eleven-day battle, Alenka, a young Greek woman, saves the lives of two Australian soldiers. Jack and Teddy are childhood friends who joined up together to see the world. Both men fall in love with Alenka. They are forced to retreat with the tattered remains of the Allied forces over the towering White Mountains. Both are among the seven thousand Allied soldiers left behind in the desperate evacuation from Crete’s storm-lashed southern coast. Alenka hides Jack and Teddy at great risk to herself. Her brother Axel is a Nazi sympathizer and collaborator and spies on her movements. As Crete suffers under the Nazi jackboot, Alenka is drawn into an intense triangle of conflicting emotions with Jack and Teddy. Their friendship suffers under the strain of months of hiding and their rivalry for her love. Together, they join the resistance and fight to free the island, but all three will find themselves tested to their limits. Alenka must choose whom to trust and whom to love and, in the end, whom to save.

The authors present twenty icons of mathematics, that is, geometrical shapes such as the right triangle, the Venn diagram, and the yang and yin symbol and explore mathematical results associated with them. As with their previous books (Charming Proofs, When Less is More, Math Made Visual) proofs are visual whenever possible. The results require no more than high-school mathematics to appreciate and many of them will be new even to experienced readers. Besides theorems and proofs, the book contains many illustrations and it gives connections of the icons to the world outside of mathematics. There are also problems at the end of each chapter, with solutions provided in an appendix. The book could be used by students in courses in problem solving, mathematical reasoning, or mathematics for the liberal arts. It could also be read with pleasure by professional mathematicians, as it was by the members of the Dolciani editorial board, who unanimously recommend its publication.

Throughout history, thinkers from mathematicians to theologians have pondered the mysterious relationship between numbers and the nature of reality. In this fascinating book, Mario Livio tells the tale of a number at the heart of that mystery: phi, or 1.6180339887...This curious mathematical relationship, widely known as "The Golden Ratio," was discovered by Euclid more than two thousand years ago because of its crucial role in the construction of the pentagram, to which magical properties had been attributed. Since then it has shown a propensity to appear in the most astonishing variety of places, from mollusk shells, sunflower florets, and rose petals to the shape of the galaxy. Psychological studies have investigated whether the Golden Ratio is the most aesthetically pleasing proportion extant, and it has been asserted that the creators of the Pyramids and the Parthenon employed it. It is believed to feature in works of art from Leonardo da Vinci's Mona Lisa to Salvador Dali's The Sacrament of the Last Supper, and poets and composers have used it in their works. It has even been found to be connected to the behavior of the stock market! The Golden Ratio is a captivating journey through art and architecture, botany and biology, physics and mathematics. It tells the human story of numerous phi-fixated individuals, including the followers of Pythagoras who believed that this proportion revealed the hand of God; astronomer Johannes Kepler, who saw phi as the greatest treasure of geometry; such Renaissance thinkers as mathematician Leonardo Fibonacci of Pisa; and such masters of the modern world as Goethe, Cezanne, Bartok, and physicist Roger Penrose. Wherever his quest for the meaning of phi takes him, Mario Livio reveals the world as a place where order, beauty, and eternal mystery will always coexist.

The interest earned on a bank account, the arrangement of seeds in a sunflower, and the shape of the Gateway Arch in St. Louis are all intimately connected with the mysterious number e. In this informal and engaging history, Eli Maor portrays the curious characters and the elegant mathematics that lie behind the number. Designed for a reader with only a modest mathematical background, this biography brings out the central importance of e to mathematics and illuminates a golden era in the age of science.

Today, anyone in a scientific or technical discipline needs programming skills. Python is an ideal first programming language, and Introduction to Programming in Python is the best guide to learning it. Princeton University’s Robert Sedgewick, Kevin Wayne, and Robert Dondero have crafted an accessible, interdisciplinary introduction to programming in Python that emphasizes important and engaging applications, not toy problems. The authors supply the tools needed for students to learn that programming is a natural, satisfying, and creative experience. This example-driven guide focuses on Python’s most useful features and brings programming to life for every student in the sciences, engineering, and computer science. Coverage includes Basic elements of programming: variables, assignment statements, built-in data types, conditionals, loops, arrays, and I/O, including graphics and sound Functions, modules, and libraries: organizing programs into components that can be independently debugged, maintained, and reused Object-oriented programming and data abstraction: objects, modularity, encapsulation, and more Algorithms and data structures: sort/search algorithms, stacks, queues, and symbol tables Examples from applied math, physics, chemistry, biology, and computer science—all compatible with Python 2 and 3 Drawing on their extensive classroom experience, the authors provide Q&As, exercises, and opportunities for creative practice throughout. An extensive amount of supplementary information is available at introcs.cs.princeton.edu/python. With source code, I/O libraries, solutions to selected exercises, and much more, this companion website empowers people to use their own computers to teach and learn the material.

Well known for his imaginative treatment of environmental issues, Kevin Dann presents a natural history of the Lewis Creek watershed in Vermont's Champlain Valley, told largely through the lives and thought of three individuals,whose investigations brought them into close contact with the area. Congregationalist minister John Perry (1825 - 1872) conducted paleontological research on the region's Paleozoic rock and attempted to negotiate his era's confrontation between science and religion. Rowland Robinson (1833 - 1900) was a Quaker farmer and author/artist whose historical fiction often dealt with issues of human impact on this watershed. The first plant-hunting expeditions of another Quaker farmer and noted plant collector, Cyrus Pringle (1838 - 1911), took place in this watershed as well. Dann's account of these three men, whose lives span nearly a century, graphically illustrates contemporary human-nature relationships at the same time that it suggests the limits of science in circumscribing our experience of the physical landscape. The experience of pain and loss is documented along with the stories of success and celebration, since, as Dann writes, "Genuine places, like human hearts, have dark recesses within them, and by examining these recesses within the Lewis Creek watershed, we take a small step toward demythologizing Vermont."

The volume reports on interdisciplinary discussions and interactions between theoretical research and practical studies on geometric structures and their applications in architecture, the arts, design, education, engineering, and mathematics. These related fields of research can enrich each other and renew their mutual interest in these topics through networks of shared inspiration, and can ultimately enhance the quality of geometry and graphics education. Particular attention is dedicated to the contributions that women have made to the scientific community and especially mathematics. The book introduces engineers, architects and designers interested in computer applications, graphics and geometry to the latest advances in the field, with a particular focus on science, the arts and mathematics education.