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What Are Vector Graphics?

This article is more of a look at Vectors vs. Pixels, which will help you understand the difference better.

According to Wikipedia.com, Vector graphics are the use of geometrical primitives such as points, lines, curves, and shapes or polygon(s), which are all based on mathematical equations, to represent images in computer graphics. Pixels are the smallest item of information in an image, and are normally arranged in a 2-dimensional grid, and are often represented using dots or squares.

Vector example

Most computer drawing programs, such as Microsoft Paint and Adobe Photoshop, utilize pixels to create art. The above example is somewhat of an exaggeration, as it was in fact created in Photoshop, and only made to mock a difference between the two. Pixels, also known as "Raster Images", are OK when it comes to computer or web-related images, but can become blocky when expanded from an original state. On the other hand, Vectors have the ability to be maximized forever and never lose their crisp quality, which makes them ideal for printing on mediums such as posters, magazines, or t-shirts.