Python's built-in unittest module is showing it's age; hard to extend, debug and track what's going on. The pytest framework overcomes these problems and simplifies testing your Python software. Many users love to use pytest and the improvement in their testing shows! This book is the ideal introduction to pytest, teaching you how to write ...
Tracebook brings a whole new dimension to our Grids & Guides family. Each Tracebook set includes two books filled with tracing paper. The covers feature two distinct grids, classic on one side and isometric on the other; cover flaps fold inside the book, providing handy structure for your sketches, designs, or lists. Remove the flaps, and your design remains, while the grid disappears. Tracing sheets are perforated for easy tear out. As useful as it is revolutionary.
In this book, cofounder and lead developer James Gardner brings you a comprehensive introduction to Pylons, the web framework that uses the best of Ruby, Python, and Perl and the emerging WSGI standard to provide structure and flexibility. You’ll learn how to create your own Pylons-driven web site and attain the mastery of advanced Pylons features. You’ll also learn how to stretch Pylons to its fullest ability, as well as share Gardner’s unique insight and extensive experience in developing and deploying Pylons for a wide variety of situations.
The creation of ever more realistic 3-D images is central to the development of computer graphics. The ray tracing technique has become one of the most popular and powerful means by which photo-realistic images can now be created. The simplicity, elegance and ease of implementation makes ray tracing an essential part of understanding and exploiting state-of-the-art computer graphics.An Introduction to Ray Tracing develops from fundamental principles to advanced applications, providing "how-to" procedures as well as a detailed understanding of the scientific foundations of ray tracing. It is also richly illustrated with four-color and black-and-white plates. This is a book which will be welcomed by all concerned with modern computer graphics, image processing, and computer-aided design. - Provides practical "how-to" information - Contains high quality color plates of images created using ray tracing techniques - Progresses from a basic understanding to the advanced science and application of ray tracing
This unique introduction to the foundational concepts of cyber-physical systems (CPS) describes key design principles and emerging research trends in detail. Several interdisciplinary applications are covered, with a focus on the wide-area management of infrastructures including electric power systems, air transportation networks, and health care systems. Design, control and optimization of cyber-physical infrastructures are discussed, addressing security and privacy issues of networked CPS, presenting graph-theoretic and numerical approaches to CPS evaluation and monitoring, and providing readers with the knowledge needed to operate CPS in a reliable, efficient, and secure manner. Exercises are included. This is an ideal resource for researchers and graduate students in electrical engineering and computer science, as well as for practitioners using cyber-physical systems in aerospace and automotive engineering, medical technology, and large-scale infrastructure operations.
This volume constitutes the selected papers presented at the First International Conference on Advanced Network Technologies and Intelligent Computing, ANTIC 2021, hed in Varanasi, India, in December 2021. Due to the COVID-19 pandemic the conference was held online. The 61 papers presented were thoroughly reviewed and selected from 593 submissions. They are organized in topical sections on advanced network technologies and intelligent computing. ;
With the increase in computing speed and due to the high quality of the optical effects it achieves, ray tracing is becoming a popular choice for interactive and animated rendering. This book takes readers through the whole process of building a modern ray tracer from scratch in C++. All concepts and processes are explained in detail with the aid o
Real crime scene investigation is vastly more complicated, arduous, bizarre, and fascinating than TV's streamlined versions. Most people who work actual investigations will tell you that the science never lies -- but people can. They may also contaminate evidence, or not know what to look for in crime scenes that typically are far more chaotic and confusing, whether inside or outside, than on TV. Forensic experts will tell you that the most important person entering a scene is the very first responding officer – the chain of evidence starts with this officer and holds or breaks according to what gets stepped on, or over, collected or contaminated, looked past, or looked over, from every person who enters or interprets the scene, all the way through the crime lab and trial. And forensic experts will tell you the success of a case can depend on any one expert's knowledge of quirky things, such as: "The Rule of the First Victim": (the first victim of a criminal usually lives near the criminal's home) Criminals' snacking habits at the scene"Nature's Evidence Technicians," the birds and rodents that hide bits of bone, jewelry, and fabric in their nestsThe botanical evidence found in criminals' pants cuffs Baseball caps as prime DNA repositoriesThe tales told by the application of physics to falling blood drops. Forensic experts talk about their expertise and their cases here. They also talk about themselves, their reactions to the horrors they witness, and their love of the work. For example, a DNA analyst talks about how she drives her family crazy by buccal-swabbing them all at Thanksgiving dinner. A latent print examiner talks about how he examines cubes of Jell-O at any buffet he goes to for tell-tale prints. A crime scene investigator gives his tips on clearing a scene of cops: he slaps "Bio-hazard" and "Cancer Causing Agent" stickers on his equipment. And an evidence technician talks about how hard it is to go to sleep after processing a scene, re-living what you've just witnessed, your mind going a hundred miles an hour. This is a world that TV crime shows can't touch. Here are eighty experts – including beat cops, evidence technicians, detectives, forensic anthropologists, blood spatter experts, DNA analysts, latent print examiners, firearms experts, trace analysts, crime lab directors, and prosecution and defense attorneys – speaking in their own words about what they've seen and what they've learned to journalist Connie Fletcher, who has gotten cops to talk freely in her bestsellers What Cops Know, Pure Cop, and Breaking and Entering. Every Contact Leaves A Trace presents the science, the human drama, and even the black comedy of crime scene investigation. Let the experts take you into their world. This is their book – their words, their knowledge, their stories. Through it all, one Sherlock Holmesian premise unites what they do and what it does to them: Every contact leaves a trace.
“Dark and atmospheric, with palpably vivid details and complex characters harboring plenty of secrets” (Kimberly Belle, internationally bestselling author of The Marriage Lie), this riveting and suspenseful thriller—by the author of the critically acclaimed Everything You Want Me to Be—follows the mysterious disappearance of a boy and his stunning return ten years later. There is a place in Minnesota with hundreds of miles of glacial lakes and untouched forests called the Boundary Waters. Ten years ago, a man and his son trekked into this wilderness and never returned. Search teams found their campsite ravaged by what looked like a bear. They were presumed dead until a decade later...the son reappears. Discovered while ransacking an outfitter store, he is violent and uncommunicative and is sent to a psychiatric facility. Maya Stark, the assistant language therapist, is charged with making a connection with the high-profile patient. No matter how hard she tries, he refuses to answer questions about his father or the last ten years of his life. But Maya, who was abandoned by her own mother, has secrets, too. And as she’s drawn closer to this enigmatic boy who is no longer a boy, she’ll risk everything to reunite him with his father who has disappeared from the known world. With breathless pacing and edge-of-your-seat twists and turns, “Leave No Trace is as thrilling as whitewater rapids and as dark as the Minnesotan wilderness itself” (Amy Gentry, internationally bestselling author of Good as Gone).