# formula

## English

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Wikipedia

### Etymology

From Latin formula (a small pattern or mold, form, rule, principle, method, formula), diminutive of forma (a form); see form.

### Pronunciation

• (UK) IPA: /ˈfɔː(ɹ).mjʊ.lə/, X-SAMPA: /"fO:(r).mjU.l@/
•  Audio (UK) Sorry, your browser either has JavaScript disabled or does not have any supported player. You can download the clip or download a player to play the clip in your browser. (file)

### Noun

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Wikipedia formula (plural formulae or formulas or formulæ)

1. (mathematics) Any mathematical rule expressed symbolically.
$x = \frac {-b \pm \sqrt{b^2 - 4ac}}{2a}$ is a formula for finding the roots of the quadratic equation ax2 + bx + c = 0.
2. (chemistry) A symbolic expression of the structure of a compound.
H2O is the formula for water (Dihydrogen monoxide)
3. A plan of action intended to solve a problem.
4. A formulation; a prescription; a mixture or solution made in a prescribed manner; the identity and quantities of ingredients of such a mixture.
The formula of the rocket fuel has not been revealed.
5. Drink given to babies to substitute for mother's milk.
6. (logic) A syntactic expression of a proposition, built up from quantifiers, logical connectives, variables, relation and operation symbols, and, depending on the type of logic, possibly other operators such as modal, temporal, deontic or epistemic ones.

#### Synonyms

• (in mathematics): mathematical formula
• (in chemistry): chemical formula