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Symbolab is an answer engine [1] that provides step-by-step solutions to mathematical problems in a range of subjects. [2] It was originally developed by Israeli start-up company EqsQuest Ltd., under whom it was released for public use in 2011. In 2020, the company was acquired by American educational technology website Course Hero. [3] [4]
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A teaching kit is a teaching resource developed by a museum education department with to create cross-curricular learning. Such kits often include many resources, such as an educators' guide, a CD-ROM with works of art and primary sources (letters, maps, period photographs), overhead transparencies, posters, curricula, and step-by-step lesson plans.
The vertices within each layer are permuted in an attempt to reduce the number of crossings among the edges connecting it to the previous layer. [1] [2] [3] Finding the minimum number of crossings or finding a maximum crossing-free set of edges is NP-complete, even when ordering a single layer at a time in this way, [13] [14] so again it is ...
Tomoe (巴, also written 鞆絵), [a] commonly translated as "comma", [2] [3] is a comma-like swirl symbol used in Japanese mon (roughly equivalent to a heraldic badge or charge in European heraldry). It closely resembles the usual form of a magatama. The tomoe appears in many designs with various uses.
A universal (2,3) Turing machine has conceivable applications. [19] For instance, a machine that small and simple can be embedded or constructed using a small number of particles or molecules. But the "compiler" Smith's algorithm implies does not produce compact or efficient code, at least for anything but the simplest cases.
A common motif used in clothing and other arts products is the dragon playing with flaming pearls (or balls [34]: 8 ), which appeared during the second half of the first 1st millennium AD. [1] The flaming ball or ball represents either the sun or the moon; it is sometimes referred as the "day or night shining pearl".
1958 ceramic CND badge made by Austen. Eric Austen (3 November 1922 – 1 July 1999) was an English designer and teacher, and played a part in the creation of the well-known ND symbol, as used, among others, by the Campaign for Nuclear Disarmament (CND).