In a LyX math formula, I want to write something like "r-number". However, the usual dash looks too long (like a minus sign). I am looking for a short, possibly upper hyphen. I couldn't find it in the lists of symbols in the bottom toolbar, and I also don't know how to search for symbols online If you can give me a tip, how to find a symbol that I need, this will be very useful.

# [Tex/LaTex] A short hyphen in a math formula

hyphenationlyxmath-modesymbols

## Best Answer

Here are three suggestions. The first is my own, and the second and third are adapted from (http://www.logic.at/staff/salzer/etc/mhyphen/). Note that the first and second both output "math italic" text, but the third outputs "upright" text.

LyX users should put the definitions (

`\usepackage`

,`\newcommand`

,`\mathchardef`

, etc.) in Document -> Settings -> LaTeX Preamble, and the usage (e.g.`\rnumber(5) = 120`

) inside math-mode (Ctrl+M).