Calculation

A calculation is a deliberate process that transforms one or more inputs into one or more results, with variable change. The term is used in a variety of senses, from the very definite arithmetical calculation of 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.

For example, multiplying 7 by 6 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
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Life without numbers is inconceivable for us. How else would we count objects, tell time, calculate prices, and so on? Our scientifically and technically advanced culture simply would not exist without numbers.
Andreas Nieder, A Brain for Numbers: The Biology of the Number Instinct

Malba Tahan
What is this?" I asked him. "Are you sad? Do you feel a longing for your own country, or are you simply planning new calculations? Is it mathematics or nostalgia?" "My friend..." he replied, "nostalgia and calculations are not unrelated. ...more
Malba Tahan, The Man Who Counted: A Collection of Mathematical Adventures

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