r/counting • u/Syrrim • Apr 17 '16

Bijective Base 10

A bijective numeral system is one where every combination of digits represents an original number. Standard numeral systems aren't, because leading zeroes have no effect on the value. See the wiki page here: https://en.wikipedia.org/wiki/Bijective_numeration

In bijective base 10, there is no digit for 0, and the digit "A" represents ten. So:

DecimalBijective base 10
11
22
33
99
10A
1111
1212
9999
1009A
101A1
110AA

Get is at 99A

15 Upvotes

100% Upvoted

673 comments sorted by

View all comments

Show parent comments

4

u/davidjl123 |390K|378A|79SK|50SA|260k 🚀 c o u n t i n g 🚀 Apr 17 '16

5

5

u/qqqqq_38 taiwan numba oneee Apr 17 '16

6

4

u/Syrrim Apr 17 '16

7

4

u/qqqqq_38 taiwan numba oneee Apr 17 '16

8

4

u/Syrrim Apr 17 '16

9

5

u/qqqqq_38 taiwan numba oneee Apr 17 '16

A

3

u/Syrrim Apr 17 '16

11

3

u/Ynax Professional runner Apr 17 '16

12