Bøger af Jack Xu

This book provides all the tools you need to develop ultra-modern multiple-page applications (MPAs) using ASP.NET Core Razor Pages, Angular elements, WebPack, RxJS, and mini-SPAs (Single-Page Applications). It will be useful for web programmers, business developers, and students of all skill levels who are interested in web-application developments.This book teaches you how to build a modern web site/application using a hybrid approach - the simplest being host one or more mini-SPAs within a larger multiple-page web application. It shows how to split a web application into functional parts, and convert each functional part into its own SPA. These mini-SPAs together form a complete multiple-page application. For each mini SPA, we use a simple JavaScript routing system to organize the states of the application and switch between different views by watching changes on the URL.The technical stack for backend consists of operating system, web server, database, and programming logic. This book chooses ASP.NET Core Razor Pages and SQL Server as the backend framework. A Razor page consists of a Razor view and a code behind file. Each Razor page is self-contained with its own view and code organized together, resulting in a simpler app, which makes coding page-focused scenarios easier and more productive. The front-end components enable the user's interaction with the web application. In this book, we choose TypeScript, npm, WebPack, RxJS, and Angular as our front-end technical stack. TypeScript is a modern JavaScript development language that provides optional static type checking, classes, and interfaces. It also offers advanced Intellisense, auto-completion, navigation, and refactoring, which makes code easier to read and understand. WebPack is a bundler and it comes in handy when you need to pack multiple assets together into a dependency graph. There is a rising tendency to use WebPack because it can fulfil nearly all tasks that you would perform through a task runner. RxJS is a library for reactive programming using observables, which make it easier to compose asynchronous or callback-based code. This book will explain how to use all of these technologies together to create a modern web application.Angular is a popular front-end JavaScript framework. Even though it is used for SPA development, we can still take advantage of this framework in building modern multiple-page web applications, i.e., we can use Angular in a non-SPA way via Angular elements. Angular elements are Angular components packaged as custom elements, a web standard for defining new HTML elements in a framework-agnostic way. This book shows how to embed Angular elements into our modern MPA project without having to migrate an entire application to Angular.This book also includes the other selected topics, including how to use Microsoft ML.NET to solve machine learning problems, such as classification, regression, and clustering; how to create various charts and graphics using ECharts; how to use SignalR to add real-time features to your web apps; how to use dependency injection, and how to create custom tag helpers and Razor Class Libraries in Razor Pages.

This book describes a powerful quantitative finance playground - Gincker Finance, which lets you build advanced financial applications without needing to write a single line of code. With this playground, you can access various free market data APIs, create interactive stock charts, perform technical analysis using various technical indicators, backtest trading strategies, and valuate different asset types using build-in pricing engines. This book and the Gincker Finance playground will be useful tools for quant developers, quant analysts, individual traders, and students of all skill levels. This playground converts different financial software packages and applications into standard templates that expose a simple and common interface. This book uses various walkthrough examples to demonstrate how to create stock charts, perform technical analysis, and backtest trading strategies on this playground by a single mouse click. This playground also allows you to save your work as a unique URL called gincker. This saved gincker not only provides output results, but also brings the development environment directly to users. This means that the gincker can deliver dynamic content: users can use it to regenerate, manipulate, modify, and customize financial analysis to meet their own requirements. The gincker can also be embedded in websites or incorporated into applications. Users can bookmark ginckers for later use or share them with friends, colleagues, and other users.

This book provides comprehensive details of developing ultra-modern, responsive single-page applications (SPA) for quantitative finance using ASP.NET Core and Angular. It pays special attention to create distributed web SPA applications and reusable libraries that can be directly used to solve real-world problems in quantitative finance. The book contains: Overview of ASP.NET Core and Angular, which is necessary to create SPA for quantitative finance.Step-by-step approaches to create a variety of Angular compatible real-time stock charts and technical indicators using ECharts and TA-Lib. Introduction to access market data from online data sources using .NET Web API and Angular service, including EOD, intraday, real-time stock quotes, interest rates. Detailed procedures to price equity options and fixed-income instruments using QuantLib, including European/American/Barrier/Bermudan options, bonds, CDS, as well as related topics such as cash flows, term structures, yield curves, discount factors, and zero-coupon bonds.Detailed explanation to linear analysis and machine learning in finance, which covers linear regression, PCA, KNN, SVM, and neural networks. In-depth descriptions of trading strategy development and backtesting for crossover and z-score based trading signals.

This book provides everything you need to create advanced web-based chart and graphics applications using C#, ASP.NET Core MVC, and JavaScript. It shows you how to create a variety of cross-platform 2D and 3D chart and graphics for your web applications, ranging from simple 2D charts and shapes to complex 3D surfaces and interactive 3D graphics

This provides a complete explanation of .NET programming in quantitative finance. It demonstrates how to implement quant models and backtest trading strategies. It pays special attention to creating business applications and reusable C# libraries that can be directly used to solve real-world problems in quantitative finance.

The book provides a complete explanation of R programming in quantitative finance. It demonstrates how to prototype quant models and backtest trading strategies. It pays special attention to creating business applications and reusable R libraries that can be directly used to solve real-world problems in quantitative finance.

The book "Practical .NET Chart Development and Applications - Advanced Chart Programming for Real-World .NET 4.5 Applications Using C#, WPF, and MVVM" provides all the tools you need to create professional charts and graphics. It is a perfect guide to learning all the basics for creating advanced chart applications using C#, WPF, and MVVM pattern. The book clearly explains practical chart methods and their underlying algorithms. The book contains: a) Overview of WPF graphics capabilities, data binding, and MVVM pattern, which is necessary to create MVVM compatible .NET chart applications. b) Introduction to SQL server, LINQ, ADO.NET Entity Framework, and database development, which will be used to prepare input data for chart applications. c) Step-by-step procedures to create a variety of 2D and 3D charts with complete ready-to-run C# and WPF code for each application. d) Powerful 2D and 3D chart packages and chart controls that can be directly used in your .NET applications with complete support for data binding and MVVM pattern. e) Incorporate real-world examples in financial market, such as storing market data in database, stock charts, linear regression, and PCA. f) Demonstrate how to create real-time 2D-line and stock chart applications using reusable chart controls.

This book presents an in-depth exposition of the various numerical methods used in real-world scientific and engineering computations. It emphasizes the practical aspects of C# numerical methods and mathematical functions programming, and discusses various techniques in details to enable you to implement these numerical methods in your .NET application. Ideal for scientists, engineers, and students who would like to become more adept at numerical methods, Practical Numerical Methods with C# familiarizes you with: - Overview of C# programming. - The mathematical background and fundamentals of numerical methods. - Math libraries for complex numbers and functions, real and complex vector and matrix operations, and special functions. - Numerical methods for generating random numbers and random distribution functions. - Various numerical methods for solving linear and nonlinear equations. - Numerical differentiation and integration. - Interpolations and curve fitting. - Optimization of single-variable and multi-variable functions with a variety of techniques, including advanced simulated annealing and evolutionary algorithms. - Numerical techniques for solving ordinary differential equations. - Numerical methods for solving boundary value problems. - Eigenvalue problems. In addition, this book provides testing examples for every math function and numerical method to show you how to use these functions and methods in your own .NET applications in a manageable and step-by-step fashion. Please visit the author's website for more information about this book at www.drxudotnet.com

Silverlight is a cross-browser, cross-platform plug-in for delivering the next generation of .NET-based media experiences and rich interactive applications for the Web. With Silverlight, your Web development experience will much more closely resemble the development of desktop applications using WPF. Ultimately, the goal of Silverlight is to create Web applications that are indistinguishable from desktop applications. "Practical Silverlight Programming" provides everything you need to create advanced graphics and user interfaces in your Web applications using Silverlight 2. From simple user interfaces and 2D shapes to complex custom user controls, game physics, and 3D graphics objects, the book uses code examples to clearly explain every step it takes to build a variety of Silverlight applications. You'll learn how to use Silverlight to develop impressive graphics effects and high-fidelity user interfaces. This book includes a complete, in-depth instruction on practical programming using Silverlight 2. After reading this book and running the example programs, you will be able to add various sophisticated graphics and interactive user interfaces to your Web applications. The 100 ready-to-run example programs in the book allow you to explore the details of UI and graphics programming techniques. You can modify the code examples or add new features to them to form the basis of your own projects. Some of the example code listings provided in this book are already sophisticated graphics and user interfaces that can be used directly in your own real-world Silverlight applications. Please visit the author's website for more information about this book at www.drxudotnet.com

The Windows Presentation Foundation (WPF) is a next generation graphics platform that is part of .NET 3.0 and .NET 3.5. It allows you to build advanced user interfaces that incorporate documents, media, 2D and 3D graphics, animations, and web-like characteristics. "Practical WPF Graphics Programming" provides all the tools you need to develop professional graphics applications using WPF and C#. This book will be useful for WPF and C# programmers of all skill levels. It provides a complete and comprehensive explanation of the WPF graphics capability, and pays special attention to the details of code implementation. The book shows you how to create a variety of graphics ranging from simple 2D shapes to complex 3D surfaces and interactive 3D models. It includes over 120 code examples, which cover broad array of topics on WPF graphics programming. You will learn how to create a full range of 2D and 3D graphics applications and how to implement custom 3D geometries and shapes that can be reused in your WPF projects. Please visit the author's website for more information about this book at www.authors.unicadpublish.com/ jack_xu.

The book "Practical C# Charts and Graphics - Advanced Chart and Graphics Programming for Real-World .NET Applications" privides all the tools you need to create professional C# chart and graphics applications For .NET developers, creating professional charts and graphics in your C# applications is now easier than ever before. Practical C# Charts and Graphics is the perfect guide to learning all the basics for creating your advanced chart and graphics applications in C#. The book clearly explains practical chart and graphics methods and their underlying algorithms. The book contains: - Overview of GDI+ graphics capabilities and mathematical basics of computer charting and graphics - Step-by-step procedures to create a variety of 2D and 3D charts and graphics with complete ready-to-run C# code for each application - Powerful 2D and 3D chart packages and user controls that can be directly used in your C# applications or can be easily modified to create your own sophisticated chart and graphics packages. - Detailed procedures to create C# spreadsheet-like chart and graphics applications - Introductions for how to use Microsoft's Excel charts in your C# applications

It is an ideal development tool that allows you to not only generate data, but also easily represent data graphically.Practical WPF Charts and Graphics provides all the tools you will need to develop professional chart and graphics applications in WPF and C#.