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Wikiversity is a center for the creation of and use of free learning materials, and the provision of learning activities. [8] [9] Wikiversity is one of many wikis used in educational contexts, [10] as well as many initiatives that are creating free and open educational resources. The primary priorities and goals for Wikiversity are to:
Wikipedia [c] is a free-content online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the wiki software MediaWiki. Wikipedia is the largest and most-read reference work in history, [ 3 ] [ 4 ] and is consistently ranked among the ten most visited websites ; as of December ...
ISO Lettering templates, designed for use with technical pens and pencils, and to suit ISO paper sizes, produce lettering characters to an international standard. The stroke thickness is related to the character height (for example, 2.5 mm high characters would have a stroke thickness - pen nib size - of 0.25 mm, 3.5 would use a 0.35 mm pen and ...
The simplest way of viewing division is in terms of quotition and partition: from the quotition perspective, 20 / 5 means the number of 5s that must be added to get 20. In terms of partition, 20 / 5 means the size of each of 5 parts into which a set of size 20 is divided.
As another example, the slide rule was arguably the most important method of computation throughout the 18th–20th centuries, and is currently not mentioned on this page; more generally there were other analog "instruments" used for calculation such as the sector and various scales used together with a pair of dividers, which were essential ...
William Oughtred (5 March 1574 – 30 June 1660), [1] also Owtred, Uhtred, etc., was an English mathematician and Anglican clergyman. [2] [3] [4] After John Napier discovered logarithms and Edmund Gunter created the logarithmic scales (lines, or rules) upon which slide rules are based, Oughtred was the first to use two such scales sliding by one another to perform direct multiplication and ...