radix numeration system
4.The fixed radix numeration system that uses the decimal digits and the radix 10 and in which the lowest integral weight is 1.
5.In a numeration system, the number that is raised to the power denoted by the exponent and then multiplied the mantissa to determine the number represented. Note: The term radix is deprecated in this sense because of its use in the term radix numeration system.
6.a radix numeration system in which the location of the decimal point is indicated by an exponent of the radix; the floating-point representation of 0.0012 is 0.l2-2 where -2 is the exponent.
7.The fixed radix numeration system that uses the sixteen digits 0,1,2,3,4,5, 6,7,8,9,A,B,C,D,E and F, where the characters A,B,C,D,E and F correspond to the numbers 10,11,12,13,14 and 15, and the radix sixteen and in which the lowest integral weight is 1.
8.In a fixed-radix numeration system, a numeral that can be derived from a given numeral by operations that include subtracting each digit of the digital representation of the given number from the corresponding digit of the digital representation of a specified number.
10.the average number of binary digits needed to express one radix digit in a non-binary numeration system; on the average a number that can be expressed in N decimal digits takes 3.3N binary digits.

