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Examples of computer clip art, from Openclipart. Clip art (also clipart, clip-art) is a type of graphic art. Pieces are pre-made images used to illustrate any medium. Today, clip art is used extensively and comes in many forms, both electronic and printed. However, most clip art today is created, distributed, and used in a digital form.
Openclipart, also called Open Clip Art Library, is an online media repository of free-content vector clip art.The project hosts over 160,000 free graphics and has billed itself as "the largest community of artists making the best free original clipart for you to use for absolutely any reason".
Hungarian mathematician Paul Erdős [21] spoke of an imaginary book, in which God has written down all the most beautiful mathematical proofs. When Erdős wanted to express particular appreciation of a proof, he would exclaim "This one's from The Book!" Twentieth-century French philosopher Alain Badiou claimed that ontology is mathematics. [22]
Such non-standard orientations are rarely used in mathematics but are common in 2D computer graphics, which often have the origin in the top left corner and the y-axis down the screen or page. [2] See below for other alternative conventions which may change the sense of the rotation produced by a rotation matrix.
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A back-of-the-envelope calculation is a rough calculation, typically jotted down on any available scrap of paper such as an envelope. It is more than a guess but less than an accurate calculation or mathematical proof. The defining characteristic of back-of-the-envelope calculations is the use of simplified assumptions.
Mathemalchemy (French: MathémAlchimie) is a traveling art installation dedicated to a celebration of the intersection of art and mathematics.It is a collaborative work led by Duke University mathematician Ingrid Daubechies [6] and fiber artist Dominique Ehrmann. [7]