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Gmath for google forms in mac chrome3/20/2023 ![]() ![]() ![]() The obelus, a historical glyph consisting of a horizontal line with (or without) one or more dots, was first used as a symbol for division in 1659, in the algebra book Teutsche Algebra by Johann Rahn. The obelus-or division sign-used as a variant of the minus sign in an excerpt from an official Norwegian trading statement form called «Næringsoppgave 1» for the taxation year 2010. ![]()
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