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It is also known as a divided bar model, fraction strip, length model or strip diagram. [citation needed] In mathematics education, it is used to solve word problems for children in elementary school. [1]
Other symbols for division include the slash or solidus /, the colon:, and the fraction bar (the horizontal bar in a vertical fraction). [3] [4] The ISO 80000-2 standard for mathematical notation recommends only the solidus / or "fraction bar" for division, or the "colon" : for ratios; it says that the ÷ sign "should not be used" for division. [1]
Graph of the fractional part of real numbers. The fractional part or decimal part [1] of a non‐negative real number is the excess beyond that number's integer part.The latter is defined as the largest integer not greater than x, called floor of x or ⌊ ⌋.
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The interpunct (·) used as a decimal separator in a British print from 1839 [16] In the nations of the British Empire (and, later, the Commonwealth of Nations ), the full stop could be used in typewritten material and its use was not banned, although the interpunct (a.k.a. decimal point, point or mid dot) was preferred as a decimal separator ...