My professor invented a symbol for when a line and a point are geometrically incident. I added a picture and wanted to ask if someone knows how to write this in LaTex? It is a small line with a dot in the middle.

enter image description here

5 Answers 5


    \draw[line cap=round,line width=0.13ex] (0,0)--(3ex,0);
    \fill (1.5ex,0) circle (0.5ex);

$(P, G, \incid)$

enter image description here

  • This is perfect, thanks. Is there an easy way to make the gaps between any input and the symbol a little wider on both sides? Apr 23 at 17:23
  • 2
    No need for an answer, I figured to add \hspace in the command. Apr 23 at 17:25

This should be a relation symbol. It can be obtained with the sequence

\relbar \joinrel \mathrel{\!\bullet\!} \joinrel \relbar

The \relbar command typesets a minus sign considered as a relation symbol; \joinrel is a small negative space considered as a relation symbol. The \bullet is made into a relation symbol, with reduced sidebearings.






enter image description here


Here's another solution that uses the method here for superimposing symbols.






$(\mathcal{P}, \mathcal{G}, \incidentsymb)$


incidence symbol


The easiest way to do this is:


Curly braces are used to suppress natural spaces; \! is a negative space.

enter image description here

Of course, you can use \newcommand:


A bit thicker line:


enter image description here

  • 1
    +1, but, please, note that \bf has been deprecated for about 30 years. In the particular case it does exactly nothing anyway.
    – egreg
    Apr 24 at 15:51

Just for fun, one way that works only with luatatex. With xelatex work adding \ensuremath before \bullet, but with pdflatex also failed miserably.

$(\mathcal{P}, \mathcal{G}, \incidence )$

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.