I have a special operator which is now denoted using 2-letter name MR. I would like to merge them into special symbol where these two letters merged, sharing vertical bar. Similar to Æ.

1 Answer 1


Something like this? The negative kerning values are a guess, however. (Improvement suggestions by Werner and egreg, many thanks to both of them!)

enter image description here


\DeclareMathOperator{\mr}{M\MRkern R}


$\mr$ $\scriptstyle\mr$ $\scriptscriptstyle\mr$


enter image description here

  • I am using 'acmsmall' document type and it it is using different math font in which it does not look as good as in your pictures above. The main problem is that M's sides in their font are slanted. Any suggestions how to fix this?
    – krokodil
    Feb 17, 2018 at 0:10
  • Wow this is so cool, MR are my initials too. Is there a way to vectorize it and use it as a logo?
    – noibe
    Feb 10, 2019 at 0:58
  • @noibe: well, you could use standalone class and let it convert to a vector format other than .pdf
    – user31729
    Feb 10, 2019 at 6:51
  • @ChristianHupfer the output using standalone class is not the best as you can see here, the bottom part of the R gets cut away.
    – noibe
    Feb 10, 2019 at 19:54
  • Is there a way to tell standalone class to be a little more generous?
    – noibe
    Feb 10, 2019 at 19:56

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