Define alphabet and stringa finite set of symbols is termed, Ask an Expert

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Define Alphabet and String?

A finite set of symbols is termed as alphabet. An alphabet is frequently signified by sigma, yet can be specified any name.

B = {0, 1} here B is an alphabet of two symbols, 0 and 1.

C = {a, b, c} here C is an alphabet of three symbols, a, b and c.

Occasionally space and comma are in an alphabet while other times such are Meta symbols utilized for descriptions. Over an alphabet a language is defined. For illustration binary language is defined over alphabet B.

A finite sequence of symbols from an alphabet is termed as string or word.

From the alphabet strings B above strings are 01110 and 111. aaabccc and b both are strings from the alphabet C above.

A null string is a string without symbols, generally denoted through epsilon has zero length.

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Computer Engineering, Engineering

Category:- Computer Engineering
Reference No.:- M9543706

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