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positional notation
(redirected from Positional number system)

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
positional notation
n.
A system of writing numbers in which the position of a digit affects its value.

positional notation
n
(Mathematics) the method of denoting numbers by the use of a finite number of digits, each digit having its value multiplied by its place value, as in 936 = (9 ✕ 100) + (3 ✕ 10) + 6
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.positional notation - a numeration system in which a real number is represented by an ordered set of characters where the value of a character depends on its position
number representation system, number system, numeration system, system of numeration - any notation for the representation of numbers
binary number system, binary numeration system, binary system, pure binary numeration system - a positional system of numeration that uses binary digits and a radix of two
octal number system, octal numeration system - a positional system of numeration that uses octal digits and a radix of eight
decimal number system, decimal numeration system, decimal system - a positional system of numeration that uses decimal digits and a base of ten
duodecimal number system, duodecimal system - a positional system of numeration that uses duodecimal digits and a radix of twelve
hexadecimal number system, hexadecimal system, sexadecimal number system - a positional system of numeration that uses hexadecimal digits and a radix of sixteen


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It looks very natural for us to use a positional number system in base 10 because human beings use their fingers for counting; but mathematically it is completely valid to use any other base equal to or greater than two.
 
 
 
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