| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
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| formula, in mathematics and physics |
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in mathematics and physics, equation expressing a definite fixed relationship between certain quantities. The quantities are usually expressed by letters, and their relationship is indicated by algebraic symbols. For example, A= r2 is the formula for the area A of a circle of radius r, and s=1/2at2 is the formula for the distance s traveled by a body experiencing an acceleration a during a time interval t. |
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| | | The Columbia Encyclopedia, Sixth Edition. Copyright © 2007 Columbia University Press. |
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