LEDA is a library of efficient data types and algorithms and a platform for combinatorial and geometric computing on which application programs can be built. In each of the core computer science areas of data structures, graph and network algorithms, and computational geometry, LEDA covers all (and more) that is found in the standard textbooks. LEDA is the first such library; it is written in C++ and is available on many types of machine. Whilst the software is freely available worldwide and is installed at hundreds of sites, this is the first book devoted to the library. Written by the main authors of LEDA, it is the definitive account, describing how the system is constructed and operates and how it can be used. The authors supply ample examples from a range of areas to show how the library can be used in practice, making the book essential for all workers in algorithms, data structures and computational geometry.

“Affecting narrative about consent, power and loneliness.”—Time “Intoxicatingly ominous.”—Kirkus Reviews In a hothouse of collegiate sex and ambition, one young woman mysteriously disappears after a wild campus party, and another becomes obsessed with finding her. It’s Halloween night on a pastoral East Coast college campus. Scantily costumed students ride the fine line between adolescence and adulthood as they prepare for a night of drinking and debauchery. Expectations are high as Leda flirts with her thrilling new crush, Ian, and he flirts back. But by the end of the night, things will have taken a turn. A mysterious young woman in a swan costume speaks with Leda outside a party—and then vanishes. When Leda later wakes up in Ian’s room the next morning, she is unsure exactly what happened between them. Meanwhile, as the campus rouses itself to respond to the young woman’s disappearance, rumors swirl, suspicious facts pile up, and Leda’s obsession with her missing classmate grows. Is it just a coincidence that Ian used to date Charlotte, the missing woman? Is Leda herself in danger? As Leda becomes more and more dangerously consumed with the mystery of Charlotte and questions about Ian, her motivations begin to blur. Is Leda looking for Charlotte, or trying to find herself? In Leda and the Swan, Anna Caritj’s riveting storytelling brings together a suspenseful plot; an intimate, confessional voice; and invaluable insights into sex, power, and contemporary culture.

This beautiful picture book tells the little-known story of Raven Wilkinson, the first African American woman to dance for a major classical ballet company and an inspiration to Misty Copeland. When she was only five years old, her parents took her to see the Ballet Russe de Monte Carlo. Raven perched on her crushed velvet seat, heard the tympani, and cried with delight even before the curtain lifted. From that moment on, her passion for dance only grew stronger. No black ballerina had ever danced with a major touring troupe before. Raven would be the first. Raven Wilkinson was born on February 2, 1935, in New York City. From the time she was a little girl, all she wanted to do was dance. On Raven's ninth birthday, her uncle gifted her with ballet lessons, and she completely fell in love with dance. While she was a student at Columbia University, Raven auditioned for the Ballet Russe de Monte Carlo and was finally accepted on her third try, even after being told she couldn't dance with them because of her skin color. When she started touring with her troupe in the United States in 1955, Raven encountered much racism in the South, but the applause, alongside the opportunity to dance, made all the hardship worth it. Several years later she would dance for royalty with the Dutch National Ballet and regularly performed with the New York City Opera until she was fifty. This beautiful picture book tells the uplifting story of the first African American woman to dance for a major classical ballet company and how she became a huge inspiration for Misty Copeland. Theodore Taylor III's unique, heavy line style of illustration brings a deeper level of fluidity and life to the work, and Misty Copeland's beautifully written foreword will delight ballet and dance fans of all ages.

Describes the circus and the ballet of fifty elephants and dancers choreographed by George Ballanchine in 1942.

Ruthie's grandmother, who is in the hospital with pneumonia, says she needs homemade borscht by 5:00 and young Ruthie, with the help of her neighbors, tries to make some even without the secret recipe.

Author and noted computer scientist Timothy Budd has been at the cutting edge of multiparadigm programming research. He has developed a single programming language--Leda-- which can be used to illustrate the benefits of four different programming paradigms. Using Leda, Budd shows in his new book how the unique features of each paradigm can be learned and applied simultaneously through one multiparadigm tool.

From watching Mom shepherd, shear, spin, and knit, a little girl finds out just how her sweater is made.