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A Base 12 Number System
3
Conversion conventions: Dozenal to Decimal
Step 1: Multiply the left-hand digit (decimally) by 12, and add the next digit to the product.
Step 2: Multiply this total by 12, and add the next digit, and so on to the end of the number.
Step 3: The final product is the decimal equivalent.
Conversion conventions: Decimal to Dozenal
A Base 12 Number System
Symbols for the Digits
By Miguel Mathias
The symbols are, in order:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, !, @
Step 1: Multiply the left-hand digit (dozenally) by !, and add the next digit to the product.
Step 2: Multiply this total by !, and add the next digit, and so on to the end of the number.
Step 3: The final product is the corresponding dozenal number.
Examples:
1. 100 to dozenal:
1
* !
____
!
+ 0
____
!
* !
____
84
+ 0
____
84
2. 2458 to dozenal:
2
* !
____
18
+ 4
____
20
* !
____
180
+ 5
____
185
* !
____
1502
+ 8
____
150!
3. 17279 to dozenal:
1
* !
_____
!
+ 7
_____
15
* !
_____
122
+ 2
_____
124
* !
_____
@@4
+ 7
_____
@@@
* !
_____
9@@2
+ 9
_____
9@@@
The Name of the System
The name of a base 12 number system would be either "duodecimal", or "dozenal".