Definition:Duodecimal System/Notation
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Duodecimal System: Notation
In order to be able to represent numbers in the duodecimal system conveniently and readably, it is necessary to render the digits $10$ and $11$ using single characters.
The following techniques accomplish this:
- $\mathrm T$ and $\mathrm E$
\(\ds 10\) | \(:\) | \(\ds \mathrm T\) | ||||||||||||
\(\ds 11\) | \(:\) | \(\ds \mathrm E\) |
that is, the initial letters of ten and eleven.
- $\mathrm A$ and $\mathrm B$
\(\ds 10\) | \(:\) | \(\ds \mathrm A\) | ||||||||||||
\(\ds 11\) | \(:\) | \(\ds \mathrm B\) |
Hence this is consistent with the common form for hexadecimal notation.
- $\mathrm X$ and $\mathrm E$
\(\ds 10\) | \(:\) | \(\ds \mathrm X\) | ||||||||||||
\(\ds 11\) | \(:\) | \(\ds \mathrm E\) |
This was the suggestion from the Duodecimal Society in $1944$.
Also see
- Results about the duodecimal system can be found here.
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $12$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $12$
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): duodecimal notation
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): duodecimal notation