In mathematics and in the sciences, a formula (plural: formulae, formulĂ¦ or formulas) is a concise way of expressing information symbolically (as in a mathematical or chemical formula), or a general relationship between quantities.

In general mathematical use there is no essential difference in meaning with the term "expression", although the word "formula" tends to be reserved for an expression that "can stand on its own", that has a meaning outside of the immediate context in which it appears and a significance that can be grasped intuitively.

Other formulae may be specially created to solve a particular problem - for example using the equation of a sine curve to model the movement of the tides in a bay.

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