What UNICODE characters should I use to write LaTeX?

Assume I write something about LaTeX in email. I use UTF-8 so I can use any UNICODE character I want. Which characters should I technically use for name "LaTeX"? I believe that LaTeX originally did not mean letters L + a + T + e + X (that is, mixture of uppercase and lowercase ASCII characters). I know that usually LaTeX is written in ASCII characters only outside LaTeX source code where one just enters `\LaTeX`.

• The name is latex or LaTeX, there is no special unicode involved. `\LaTeX` is a logo. I normally use latex or pdflatex when I mean the application or when I'm lazy, and LaTeX for the format. Oct 22, 2015 at 11:02
• I think the question is mainly if the X should be `Greek Capital Letter Xi` Oct 22, 2015 at 11:06
• U+004c LATIN CAPITAL LETTER L U+0061 LATIN SMALL LETTER A U+0054 LATIN CAPITAL LETTER T U+0065 LATIN SMALL LETTER E U+0058 LATIN CAPITAL LETTER X Oct 22, 2015 at 12:09
• Why not U+004C LATIN CAPITAL LETTER L U+0061 LATIN SMALL LETTER A U+03A4 GREEK CAPITAL LETTER TAU U+0395 GREEK CAPITAL LETTER EPSILON U+03A7 GREEK CAPITAL LETTER CHI as in LAΤΕΧ? Oct 23, 2015 at 7:22

The `latex` logo does not contain any special characters. It has only normal uppercase roman letters. It is traditionally typed in `latex` itself with said logo with the command `\LaTeX`. Outside of `latex`, people usually write "LaTeX" or "latex". Also see Wikipedia on this.