HexaDecimal Number System
In this number system,
Hexadecimal means '6+10=16'
Base (or) Radix of Hexadecimal number system is '16'.
Therefore, r = 16.
Number of digits in this number system are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
Highest value is 'F'.
Therefore, r-1 = F.
Hexadecimal number system can be represented by hexadecimal position values as power of 16.
For example,
(AB.F7)16 = A*16power1 + B*16power0 . F*16power(-1) + 7*16power(-2)
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