Number

Sign or character that serves to represent .

In and of computation, numerical digit it is a symbol, v.g. used 3, in numerals (combinations of symbols), v.g. 37, to represent (whole numbers or real) in numeration systems positional. (the name digit it comes from which the 10 fingers they correspond to the 10 digits in the numerical system common in base 10, that is to say, a digit decimal).

Examples of digits include anyone of carácters decimal from "0" to "9", or of carácteres of "0" or "1", and digits "0"..."9", "A",...,"F"used in . In a given system of numeration, if the base (radical, in English) it is a whole number, the number of necessary digits, including a the zero, is always equal to absolute value of the base.

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