Representation of digits

[Gianni]

is there an official standard for representing digits with a base greater than 16?

digit value | digit to use
------------+-----------
      0     |      0
      ...   |     ...
      8     |      8
      9     |      9
      10    |      A
      11    |      B
      12    |      C
      13    |      D
      14    |      E
      15    |      F
      16    |     ???
      17    |     ???
      ...   |     ???

 

[Nine]

http://extraconversion.com/base-number/base-24

Also a  pretty good article : https://fr.wikipedia.org/wiki/Base_(arithmétique)

Edited September 5, 2021 by Nine

[Danp2]

Not sure that I understand the question. It looks like you are converting decimal to hexadecimal.

[Gianni]

Thanks @Danp2

35 minutes ago, Danp2 said:

Not sure that I understand the question. It looks like you are converting decimal to hexadecimal.

in base 10 we have 10 symbols; 0 to 9

in base 16 we have 16 symbols; 0 to F
.....
in base 100 (or even more) we should have 100 (or more) symbols, one for each digit.
I wonder if there is any official reference that dictates what these symbols should must be.

 

35 minutes ago, Nine said:

http://extraconversion.com/base-number/base-24

thanks @Nine

in that site we use the digits from 0 to 9 and then the letters of the alphabet from "A" to the letter "Z" to represent the digits of a number in base 36. I wonder if that is an "arbitrary" convention adopted only by that site or if there is an official recommendation (issued by some mathematical authority) stating which symbols should must be used for each base (possibly even beyond base 36)

any reference is welcome
Thanks

Edited September 5, 2021 by Chimp

[Nine]

See the Wiki I added.  There is quite extensive references in there...