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Negative number
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== External links == {{wikiquote}} * [http://www-history.mcs.st-andrews.ac.uk/history/Mathematicians/Maseres.html Maseres' biographical information] * [http://www.bbc.co.uk/radio4/history/inourtime/inourtime_20060309.shtml BBC Radio 4 series ''In Our Time'', on "Negative Numbers", 9 March 2006] * [http://www.free-ed.net/sweethaven/Math/arithmetic/SignedValues01_EE.asp Endless Examples & Exercises: ''Operations with Signed Integers''] * [http://mathforum.org/dr.math/faq/faq.negxneg.html Math Forum: Ask Dr. Math FAQ: Negative Times a Negative] {{Number systems}} {{Authority control}} {{DEFAULTSORT:Negative And Non-Negative Numbers}} [[Category:Chinese mathematical discoveries]] [[Category:Elementary arithmetic]] [[Category:Numbers]]
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