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For example, a digital door lock with a 4-digit code (each digit having 10 possibilities, from 0 to 9) would have B (10, 4) solutions, with length 10 000. Therefore, only at most 10 000 + 3 = 10 003 (as the solutions are cyclic) presses are needed to open the lock, whereas trying all codes separately would require 4 × 10 000 = 40 000 presses.
It is possible to construct binary Gray codes with n bits ... base = 10, digits = 4 // output: baseN[] = [0,0,9 ... of a balanced n-digit Gray code such that the ...
230210 4 = 10 11 00 10 01 00 2. Since sixteen is a power of four, conversion between these bases can be implemented by matching each hexadecimal digit with two quaternary digits. In the above example, 23 02 10 4 = B24 16
Can be notated with the digits 0–9 and the cased letters A–Z and a–z of the English alphabet. 64: Tetrasexagesimal: I Ching in China. This system is conveniently coded into ASCII by using the 26 letters of the Latin alphabet in both upper and lower case (52 total) plus 10 numerals (62 total) and then adding two special characters (+ and ...
EBCDIC [nb 11] systems use a zone value of 1111 2 (F 16), yielding F0 16-F9 16, the codes for "0" through "9", a zone value of 1100 2 (C 16) for positive, yielding C0 16-C9 16, the codes for "{" through "I" and a zone value of 1110 2 (D 16) for negative, yielding D0 16-D9 16, the codes for the characters "}" through "R". Similarly, ASCII ...
A credit card security code is a three- or four-digit code that’s unique to your card. In case a merchant asks, the security code goes by a few different names , mainly the: Card Verification ...
That is, the value of an octal "10" is the same as a decimal "8", an octal "20" is a decimal "16", and so on. In a hexadecimal system, there are 16 digits, 0 through 9 followed, by convention, with A through F. That is, a hexadecimal "10" is the same as a decimal "16" and a hexadecimal "20" is the same as a decimal "32".
This is a list of some binary codes that are (or have been) used to represent text as a sequence of binary digits "0" and "1". Fixed-width binary codes use a set number of bits to represent each character in the text, while in variable-width binary codes, the number of bits may vary from character to character.