formula

Definition

Any mathematical rule expressed symbolically.

Etymology

Learned borrowing from Latin fōrmula (“a small pattern or mold, form, rule, principle, method, formula”), diminutive of forma (“a form”). See form.

Example Sentences

• "x=(-b±√)/(2a) is a formula for finding the roots of the quadratic equation ax² + bx + c = 0."
• "H₂O is the formula for water."
• "The company's winning formula includes excellent service and quality products."

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