CodeGuru Staff

As discussed in earlier installments of this article series–most notably in, An Introduction to LINQ and The Standard Query Operators–one of LINQ’s primary components is its set of standard query operators. A query operator is a method that operates on a sequence of data and performs some task based on that data, are implemented as […]

Why Parallel Programming Historically Moore’s law has allowed us to largely ignore writing code designed to execute in parallel because the processor speed has continued to dramatically increase over time allowing our applications to run faster based solely on the hardware. Hardware has become increasingly more powerful and more readily available. However, clock speeds have […]

Introduction Background concepts Applications: function minimization Applications: nonlinear-least-square Source code and flowchart Introduction The downhill simplex algorithm was invented by Nelder and Mead [1]. It is a method to find the minimum of a function in more than one independent variable. The method only requires function evaluations, no derivatives. Thus make it a compelling optimization […]

Motivation Benchmark Declaration and Conclusion Motivation For academic researchers (such like me — a physicist) who need to deal with heavy scientific computation and maintain simulation packages on a regular basis, usually, efficiency is the ultimate goal. However, resource management is also important, such like preventing memory leak. Some of my fellow physicists prefer to […]

Introduction MongoDB represents a new type of database model, one which turns the relational database design on its head. Relational databases, such as those in Microsoft SQL Server, MySQL or Oracle DB, store data in one or more structured tables with predefined columns. MongoDB does not store structured data, but rather free-form data known as […]

Introduction Multi-core processors are here to say, and to stay competitive developers need to learn new tricks to utilize these swift chips. With the introduction of Microsoft Visual Studio 2010 and .NET Framework 4.0, Microsoft has given developers betters tools and class libraries to create multi-threaded applications. In this article, you are going to learn […]

Introduction We have all been there before. You have a web application that runs in your data center, and the load the website is generating is increasing. You need to buy more servers and increase your bandwidth to the Internet as well. Every year you find yourself back in the same place, adding servers, increasing […]

Microsoft prompted users of existing MSE releases (including versions 1.0.1407.0, 1.0.1500.0, 1.0.1610.0, 1.0.1961.0, or an earlier version) to upgrade on June 28. The upgrade – version number 1.0.1963.0 – was marked “Important” or “High Priority.” (A quick refresher on MSE: MSE is Microsoft’s replacement for Windows Live OneCare and a superset of Windows Defender. Microsoft […]

Introduction ASP.NET MVC 2 supports server-side as well as client-side validation, out of the box. This validation is based on the DataAnnotations attributes, which can be easily implemented by decorating the model properties with the validation attributes. ASP.NET MVC 2 will automatically enforce the validation rules, which also helps in maintaining all the validation rules […]

Search engine optimization, or SEO, is the practice of improving a website’s position in search engines’ results using unpaid techniques. A better (higher) position in the search results will, in theory, lead to more click throughs, increasing the website’s visibility and audience. There are a number of simple steps you can take on your website […]

From Sybase: Sybase announced the newest version of its mobile database product, SQL Anywhere 12, designed for mission-critical applications running outside of traditional data center environments. New features in version 12 include: Auto-tuning and self-healing features that can scale up and out with little or no onsite IT support. Support for iPhone, BlackBerry and Windows […]

Introduction to the Pointer-to-Member Function C++ Grammar Pointer-to-member function is not regular pointer C++ Type conversion rules Pointer-to-member function array and an application Member function call and this pointer Conclusion Introduction to the Pointer-to-Member Function Pointer-to-member function is one of the most rarely used C++ grammarfeatures. Even experienced C++ programmers are occasionally be confused. This […]