formüle

A formüle is a concise symbolic expression that describes a relationship between quantities or a rule for computing a quantity. Formulas use variables, constants, and mathematical operations to represent general laws, procedures, or specific calculations.

The term has Latin roots in formula, meaning a fixed plan or rule. In many languages it denotes both general formulas and particular calculation rules. In Estonian, formüle is the standard word; in English the common term is formula, with plural formulas or formulae.

Common types include mathematical formulas, physical formulas, and chemical formulas. Mathematical formulas state relationships such as area or volume, for example A = πr². Physical formulas express laws of motion or thermodynamics, such as F = ma or E = mc². Chemical formulas indicate composition, such as H₂O or CO₂, and can also denote reaction stoichiometry. Formulas may also specify procedures or algorithms, like the quadratic formula x = (-b ± √(b² - 4ac)) / 2a.

Notation provides a compact way to convey ideas, but formulas are not results in themselves. To use a formula, values are substituted for the variables and the indicated operations are carried out, with attention to units and the domain of validity.

Formulas are fundamental in education, science, engineering, economics, and computer science. They enable quick calculations, modeling, and communication of complex relationships, while remaining subject to assumptions, simplifications, and context-specific limitations.

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