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Koncept

Konstant

En konstant är ett fixt värde, till skillnad från variabler. Tal är konstanter, t.ex. 15. Vissa konstanter förekommer ofta och har därför egna tecken, t.ex. π. En konstant i ett algebraiskt uttryck brukar kallas konstantterm.
Uttryck med konstant

Ibland används bokstäver som t.ex. a, b och c för att beteckna okända konstanter som man vet har ett fixt värde, men inte vilket.

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