Learn web design, computer maintenance, programming, computer architecture, computer networking, electronics, mathematics, art and graphic design.

The Mechanical Universe

Draw with your finger


Learn more at amazon.com

Regular Expression Position Matching
In this article you how to use regular expressions to match characters at the beginning, end, both beginning and end, or at any specified location in a string. More ...

Regular Expressions Subexpressions
In this article you learned how to use subexpressions to rearrange matches in a regular expression and how to replace the value of a subexpression match in the results. More ...

How to Draw an Airplane
Drawing an airplane is much easier if you first construct two-point perspective guidelines. This article shows you how to draw an airplane in ten easy steps. More ...

SVG Basic Shapes Tutorials
This is an introduction to SVG (Scalable Vector Graphics) and tutorials with examples on how to use simple code to draw basic shapes. More ...

Area of an Ellipse Calculator
It's easy to calculate the area of an ellipse because it's similar to calculating the area of a circle ecept instead of Pi times the radius squared, its Pi times the long axis times the short axis. More ...

Create Your Own Database Using Only Notepad : CDV
In this article you learn how to create a database using only a basic text editor along with any web browser. You won't believe how simple and powerful this method is. The database we design will have powerful features. More ...

Use PowerShell and WMI to Get CPU Information
Suppose you want to get some information about the CPU in your computer. Can you remember which Control Panel utility will provide that information? If you use a PowerShell script to access WMI you can always get the information you want no mater how they rearrange Control Panel. More ...

A Handful of Useful Run Commands: calc, notepad, wordpad, voice recorder, control
The Run dialog box which can be opened by pressing the [Windows] + [R] keys. Run dialog box is a rapid way to open programs. Here are some quick and useful Run commands. More ...

Regular Expression Basics : Match a Set of Characters
A Regular Expression (regex) is a sequence of characters that define a pattern that allows you to search, match, locate, replace, manipulate, and manage text. In this article you'll learn how to use regular expressions to match a set of of characters. More ...

Regular Expression: Alternation
In this article you learn how to create an alternation regular expression that will match alternate patterns in a string. More ...

Easy CSS 3D Mouse-over Pressed Text Effect
I provide easy CSS code for 3d text when you move your mouse pointer over the 3D text shown above, the text will appear to be pressed. In this example, I configured the 3d text in a link. More ...

Inkscape Text Kerning
Although Inkscape might be considered a vector drawing application, it is also a powerful typographical design program. Actually Text Kerning is not a good title for this article because in it I will cover all the different typographical adjustments you can make in Inkscape. More ...

The Evolution of Hard Disk Bit Recording
Hard drive technology has continuously improved over the decades, that includes higher storage capacity performance. Part of this improvement has been higher access speeds, but most of the higher storage capacity has been the result of changes in the bit recording methods. More ...

JavaScript to Copy and Paste Text to the Clipboard
In some applications, rather than the user's selection, you may want to copy the contents of a specific html element to the clip board. Or when the user initiates a Paste, you may want to direct the contents of the user's clipboard to a specific html element on the webpage. Here is the code for this. More ...

Area of a Triangle Calculator
There are three different methods to calculate the area of a triangle depending upon what information you have about the triangle. This application combines all three. More ...

Learn Assembly Language Programming on Raspberry Pi 400
One of the easiest ways to learn assembly language programming is on the Raspberry Pi 400. The Raspberry Pi 400 is a complete personal computer built into a compact keyboard. More ...


See it at amazon.com

Custom Search