# [Tex/LaTex] \perp and \parallel with equal height

math-mode

I'm looking for a way to get symbols for perpendicular and parallel with an equal height. I want to use the symbols as a superscript to a function like

\Psi^{\perp/\parallel}


However, it looks kind of awkward since the two symbols are not displayed at the same height (the parallel sign is way larger). If I use

\scriptstyle\parallel


the symbols have approximately the same height but are not aligned properly in the vertical direction.

Update: I found out that

\Psi^{\perp/\raisebox{0.5pt}{$\scriptscriptstyle\parallel$}}(x)


produces what I'm looking for. Still this is kind of a hack and more consistent solution would be really appreciated.

I suggest you construct a symbol using vertical rules. One version that will adapt itself to different math modes is

\newcommand{\myparallel}{{\mkern3mu\vphantom{\perp}\vrule depth 0pt\mkern2mu\vrule depth 0pt\mkern3mu}}


which you can use as

\Psi^{\perp/\myparallel}


The height of the \vrule here automatically adjusts to the height of \perp, setting the depth to 0pt makes it fit with the base of that symbol too.