How do I typeset a caron or inverted circumflex as a character on its own in math-mode, rather than as a diacritic above another character? I need to do this because I want to use it as a superscript, like . This is when describing a pair of functions: f^ and .

  • Out of curiosity, what are you using this for? It's a nice idea. Dec 9 '14 at 17:07
  • @ssdecontrol typesetting examples from Barwise &Seligmans book on Channel Theory.
    – jaybee
    Dec 10 '14 at 12:11

Something like this?

enter image description here

\usepackage{amsmath} % for \text macro
$f\text{\v{}}$ $f\text{\^{}}$ $f\text{\u{}}$ $f\text{\={}}$  $f\text{\.{}}$ $f\text{\"{}}$
  • Thanks! I also need a subscript in places, but neither $f\text{\v{}}_T$ or $f_T\text{\v{}}$ look right -- any ideas?
    – jaybee
    Dec 9 '14 at 9:49
  • @jaybee - Would ${f\text{\v{}}}_{\mkern-14mu T}$ be acceptable? The point of this admittedly not-so-pretty-looking approach is that the position of the caron isn't changed from the case without the subscript T.
    – Mico
    Dec 9 '14 at 10:01
  • Ugly but effective, thanks again :)
    – jaybee
    Dec 9 '14 at 10:23
  • @jaybee - Just out of curiosity: Do you maybe want the accent characters to be placed a bit higher up than I do in my code?
    – Mico
    Dec 9 '14 at 11:05

Adjust the amount of lowering (now 0.5ex) to suit your need.




Standard size





enter image description here


After \definepostaccent{\pcheck}{\check}, the macro \pcheck is defined to do


This means that \pcheck must be used only in superscripts; it will print a box where

  1. the suitable font size is set: \f@size in first level superscripts, \sf@size in second level superscripts, which correspond to the normal font size and the superscript font size;

  2. The box contains a 0.5ex lowered box which is given its natural height (\height-0.5ex) and zero depth

  3. The lowered box contains the math accent, slightly shifted right.

Using ^{\pcheck} guarantees that a subscript will be printed in its usual position.


May I suggest an alternative approach: Use $\vee$ and $\wedge$ as superscripts, like $f^\vee$ and $f^\wedge$.

Solution using $\vee$ and $\wedge$ as superscripts

  • Good call! Much simpler and though the symbols are bigger it looks fine as far as I'm concerned.
    – jaybee
    Dec 9 '14 at 15:24

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.