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A parabola, a simple example of a curve In mathematics, a curve (also called a curved line in older texts) is, generally speaking, an object similar to a line but which is not required...

A beam compass and a regular compass In some medieval illustrations, the compass was used as a symbol of God’s act of creation A thumbscrew compass for setting and maintaining a precise radius A...

A size chart illustrating the ISO A series and a comparison with American letter and legal formats. Comparison of some paper and photographic paper sizes close to the A4 size. Many paper size standards...

Modern blueprint of the French galleon La Belle. A blueprint is a type of paper-based reproduction usually of a technical drawing, documenting an architecture or an engineering design. More generally, the term “blueprint” has...

Example showing effect of vector graphics versus raster graphics. The original vector-based illustration is at the left. The upper-right image illustrates magnification of 7x as a vector image. The lower-right image illustrates the same...