Cholesky factorization
In linear algebra, a matrix decomposition or matrix factorization is a factorization of a matrix…
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euroinformatica
Basic shading in OpenGL
Normals During the last few tutorials you’ve been dealing with normal without really knowing what…
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Model loading in OpenGL
In this tutorial we will learn how to load 3D meshes from files. We will…
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Keyboard and Mouse in OpenGL
The interface Since this code will be re-used throughout the tutorials, we will put the…
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Texture in OpenGL
About UV coordinates When texturing a mesh, you need a way to tell to OpenGL…
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Color in OpenGL
Draw a cube A cube has six square faces. Since OpenGL only knows about triangles,…
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Matrices in OpenGL
Homogeneous coordinates Until then, we only considered 3D vertices as a (x,y,z) triplet. Let’s introduce…
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The first triangle in OpenGL
OpenGL 3 makes it easy to write complicated stuff, but at the expense that drawing…
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Introduction to OpenGL
Introduction Welcome to the first tutorial ! Before jumping into OpenGL, you will first learn…
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Selecting MySQL Database
Once you get connected with the MySQL server, it is required to select a database…
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Drop MySQL Database
Drop a Database using mysqladmin You would need special privileges to create or to delete…
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MySQL – Create Database
Create Database Using mysqladmin You would need special privileges to create or to delete a…
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MySQL – Connection
MySQL Connection Using MySQL Binary You can establish the MySQL database using the mysql binary…
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MySQL – PHP Syntax
MySQL works very well in combination of various programming languages like PERL, C, C++, JAVA…
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MySQL – Administration
Running and Shutting down MySQL Server First check if your MySQL server is running or…
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PL/SQL – Object Oriented
In this chapter, we will discuss Object-Oriented PL/SQL. PL/SQL allows defining an object type, which…
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PL/SQL – DBMS Output
In this chapter, we will discuss the DBMS Output in PL/SQL. The DBMS_OUTPUT is a…
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PL/SQL – Date & Time
In this chapter, we will discuss the Date and Time in PL/SQL. There are two…
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PL/SQL – Transactions
In this chapter, we will discuss the transactions in PL/SQL. A database transaction is an…
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PL/SQL – Collections
In this chapter, we will discuss the Collections in PL/SQL. A collection is an ordered…
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PL/SQL – Packages
In this chapter, we will discuss the Packages in PL/SQL. Packages are schema objects that…
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PL/SQL – Triggers
In this chapter, we will discuss Triggers in PL/SQL. Triggers are stored programs, which are…
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PL/SQL – Exceptions
In this chapter, we will discuss Exceptions in PL/SQL. An exception is an error condition…
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PL/SQL – Records
In this chapter, we will discuss Records in PL/SQL. A record is a data structure…
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PL/SQL – Cursors
In this chapter, we will discuss the cursors in PL/SQL. Oracle creates a memory area,…
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PL/SQL – Functions
In this chapter, we will discuss the functions in PL/SQL. A function is same as…
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PL/SQL – Procedures
In this chapter, we will discuss Procedures in PL/SQL. A subprogram is a program unit/module…
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PL/SQL – Arrays
In this chapter, we will discuss arrays in PL/SQL. The PL/SQL programming language provides a…
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PL/SQL – Strings
The string in PL/SQL is actually a sequence of characters with an optional size specification….
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PL/SQL – Loops
In this chapter, we will discuss Loops in PL/SQL. There may be a situation when…
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PL/SQL – Conditions
In this chapter, we will discuss conditions in PL/SQL. Decision-making structures require that the programmer…
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PL/SQL – Operators
In this chapter, we will discuss operators in PL/SQL. An operator is a symbol that…
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PL/SQL – Constants and Literals
In this chapter, we will discuss constants and literals in PL/SQL. A constant holds a…
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PL/SQL – Variables
In this chapter, we will discuss Variables in Pl/SQL. A variable is nothing but a…
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PL/SQL – Data Types
In this chapter, we will discuss the Data Types in PL/SQL. The PL/SQL variables, constants…
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PL/SQL – Basic Syntax
In this chapter, we will discuss the Basic Syntax of PL/SQL which is a block-structured…
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VB.Net – Overview
Visual Basic .NET (VB.NET) is an object-oriented computer programming language implemented on the .NET Framework….
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PL/SQL – Environment Setup
In this chapter, we will discuss the Environment Setup of PL/SQL. PL/SQL is not a…
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PL/SQL – Overview
The PL/SQL programming language was developed by Oracle Corporation in the late 1980s as procedural…
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SQL – RDBMS Concepts
What is RDBMS? RDBMS stands for Relational Database Management System. RDBMS is the basis for…
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SQL – Overview
SQL is a language to operate databases; it includes database creation, deletion, fetching rows, modifying…
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MySQL – Installation
All downloads for MySQL are located at MySQL Downloads. Pick the version number of MySQL…
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MySQL – Introduction
What is a Database? A database is a separate application that stores a collection of…
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Python – Extension Programming with C
Any code that you write using any compiled language like C, C++, or Java can…
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Python – GUI Programming (Tkinter)
Python provides various options for developing graphical user interfaces (GUIs). Most important are listed below….
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Python – XML Processing
XML is a portable, open source language that allows programmers to develop applications that can…
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Python – Multithreaded Programming
Running several threads is similar to running several different programs concurrently, but with the following…
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Python – Sending Email using SMTP
Simple Mail Transfer Protocol (SMTP) is a protocol, which handles sending e-mail and routing e-mail…
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Python – Network Programming
Python provides two levels of access to network services. At a low level, you can…
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Python – MySQL Database Access
The Python standard for database interfaces is the Python DB-API. Most Python database interfaces adhere…
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