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1 h1. One (number) Notations
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3 In algebra and calculus, one the multiplicative identity of any ring.
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7 h3. Descriptions of this Symbol
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9 - OpenMath's [alg1/one|http://www.openmath.org/cd/alg1.xhtml#one]
10 - MathML only seems to allow zero as a special [Number|http://www.w3.org/TR/MathML3/chapter4.html#contm.cn]
11 - MathWorld's [1|http://mathworld.wolfram.com/1.html]
12 - Wikipedia's [Multiplicative identity|http://en.wikipedia.org/wiki/Multiplicative_identity]
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15 h3. Observations of one
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17 h4. Arabic (Saudi Arabia and some provinces) !one1-ar.png|align=right!
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19 On the right we find the Saudi math book for elementary-school shows one. In this example 15 multiplied by 1 (WAHED in Arabic context).
20 [Download the book and find the example in page 22|http://www2.moe.gov.sa/ebooks/6/%D8%A7%D9%84%D8%B5%D9%81%20%D8%A7%D9%84%D8%B3%D8%A7%D8%AF%D8%B3%20%D8%A7%D9%84%D8%A7%D8%A8%D8%AA%D8%AF%D8%A7%D8%A6%D9%8A%20-%20%D8%A7%D9%84%D9%81%D8%B5%D9%84%20%D8%A7%D9%84%D8%AF%D8%B1%D8%A7%D8%B3%D9%8A%20%D8%A7%D9%84%D8%A3%D9%88%D9%84%20-%20%D8%A7%D9%84%D8%B1%D9%8A%D8%A7%D8%B6%D9%8A%D8%A7%D8%AA.pdf].
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24 h4. Dutch !one1-du.png|align=right!
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26 The Dutch book [Basisboek Wiskunde|Census.Bibliography#BasisboekWiskunde-JanvandeCraats] shows the digit one in page 19. the example represents a multiplication process.
27 [Download the book and find the example|http://staff.science.uva.nl/~craats/BasisboekWiskunde2HP.pdf].
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31 h4. English !one1-en.png|align=right!
32 In the [algebra book in bibliography|Census.Bibliography#algebra-Downing] we find this example on the right represents addition process, one plus nine.
33 [Find the example in page 2 in google book links|http://books.google.com/books?id=RiX-TJLiQv0C&lpg=PA36&dq=absolute%20value&pg=PA2#v=onepage&q=&f=false.]
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39 h3. Encoding the observations of one
40 - [See encodings|http://devdemo.activemath.org/mathbridge/tools/symbolpresentation.cmd?order=by+Theory&lang=x-all&fmt=html&clipCoordinate=3&noApplet=true&omsource=%3COMOBJ+xmlns%3D%22http%3A%2F%2Fwww.openmath.org%2FOpenMath%22%3E%0D%0A++%3COMS+cd%3D%22alg1%22+name%3D%22one%22+xref%3D%22mbase%3A%2F%2Fopenmath-cds%2Falg1%2Fone%22+%2F%3E%0D%0A%3C%2FOMOBJ%3E&submit=View]
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