Jump to content

Formatting Post Numbers


Monkuar

Recommended Posts

Well I did have to look up how uppercase letters compared to lowercase letters. Learned along the way that no, digits 0-9 aren't actually the digits 0-9 like you would expect. And it's not even the reverse of ASCII too (where digits

Link to comment
Share on other sites

What do you mean the rules aren't set?

9 is IX and 4 is IV, but 99 is not IC, it's XCIX. They favor the X over the L. Similarly, 499 is CDXCIX. The rule is consistent for NINES but not for "one less than the next largest digit." It's difficult to do programmatically. Not impossible, just not fun.
Link to comment
Share on other sites

What do you mean the rules aren't set?

9 is IX and 4 is IV, but 99 is not IC, it's XCIX. They favor the X over the L. Similarly, 499 is CDXCIX. The rule is consistent for NINES but not for "one less than the next largest digit." It's difficult to do programmatically. Not impossible, just not fun.

 

The rules for subtraction are (Reference: http://www.factmonst...a/A0769547.html)

 

Several rules apply for subtracting amounts from Roman numerals:

  • a. Only subtract powers of ten (I, X, or C, but not V or L)
     
     
     
     
    For 95, do NOT write VC (100 – 5).

    DO write XCV (XC + V or 90 + 5)

     


  • b. Only subtract one number from another.
     
     
     
     
    For 13, do NOT write IIXV (15 – 1 - 1).

    DO write XIII (X + I + I + I or 10 + 3)


  • c. Do not subtract a number from one that is more than 10 times greater (that is, you can subtract 1 from 10 [iX] but not 1 from 20—there is no such number as IXX.)
     
     
     
     
    For 99, do NOT write IC (C – I or 100 - 1).

    DO write XCIX (XC + IX or 90 + 9)

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.