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Varijabla Definicija

In mathematics, a variable is a symbol used to represent an arbitrary element that can change or that may take on different values. Variables may also refer to a letter, symbol, or snippet of words or text, representing such a quantity. In addition to numbers, variables are commonly used to represent vectors, matrices and functions.

Izrada algebarske izračuna s varijablama kao da su eksplicitni brojevi omogućavaju jednom da riješi niz problema u jednom računu. Tipičan primjer je kvadratsku formulu , što omogućava da riješi svaku kvadratnu jednadžbu jednostavnim zamjenom numeričkih vrijednosti koeficijenata za equation za varijable koje ih predstavljaju.

In mathematical logic, a variable is either a symbol representing an unspecified term of the theory, or a basic object of the theory, which is manipulated without referring to its possible intuitive interpretation.