# Calculation

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A **calculation** is a deliberate process for transforming one or more inputs into one or more results.

The term is used in a variety of senses, from the very definite arithmetical calculation using an algorithm to the vague heuristics of calculating a strategy in a competition or calculating the chance of a successful relationship between two people.

Multiplying 7 by 8 is a simple algorithmic calculation.

Estimating the fair price for financial instruments using the Black-Scholes model is a complex algorithmic calculation.

Statistical estimations of the likely election results from opinion polls also involve algorithmic calculations, but give results that are ranges of possibilities rather than exact answers.

Deciding the best way to build a relationship with a member of the opposite sex may also result from a calculation, but is not definite, predictable, nor even clearly defined. This indefinite application of the term gives it a second area of meaning apart from the mathematical senses mentioned above.

To *calculate* means to ascertain by computing. The English word derives from Latin. *Calculus*, in its origins, a small stone in the gall-bladder from Latin *calx*. It also meant a pebble used for calculating, or a small stone used as a counter in an abacus (Latin *abacus*, Greek *abax*). The abacus was an instrument used by Greeks and Romans for arithmetic calculations and consisted of perforated pebbles sliding on iron bars, preceding the slide-rule and the electronic calculator. Philologically connected to *pebble*, (Anglo-Saxon *papolstán*, literally — pebble stone). Russian uses root *chislo*, that is, number, quantity, in its various verbal and nominal forms.

## See also Edit

fr:Calcul (mathématiques)ko:계산 ru:Вычисление

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