I am trying to find out which latex character I should use to produce this X:

enter image description here

I tried using this web-site but couldn't find the exact same thing. http://detexify.kirelabs.org/classify.html

My best guesses are:


but both of them are different than the image.


When I try to build,




I get the following error,

Saits-MacBook-Pro:Desktop sait$ pdflatex a.tex
This is pdfTeX, Version 3.14159265-2.6-1.40.15 (TeX Live 2014) (preloaded format=pdflatex)
 restricted \write18 enabled.
entering extended mode
LaTeX2e <2014/05/01>
Babel <3.9k> and hyphenation patterns for 21 languages loaded.
Document Class: article 2007/10/19 v1.4h Standard LaTeX document class
No file a.aux.
kpathsea: Running mktextfm pzcmi7t
/usr/local/texlive/2014basic/texmf-dist/web2c/mktexnam: Could not map source abbreviation  for pzcmi7t.
/usr/local/texlive/2014basic/texmf-dist/web2c/mktexnam: Need to update ?
mktextfm: Running mf-nowin -progname=mf \mode:=ljfour; mag:=1; nonstopmode; input pzcmi7t
This is METAFONT, Version 2.7182818 (TeX Live 2014) (preloaded base=mf)

kpathsea: Running mktexmf pzcmi7t
! I can't find file `pzcmi7t'.
<*> ...=ljfour; mag:=1; nonstopmode; input pzcmi7t

Please type another input file name
! Emergency stop.
<*> ...=ljfour; mag:=1; nonstopmode; input pzcmi7t

Transcript written on mfput.log.
grep: pzcmi7t.log: No such file or directory
mktextfm: `mf-nowin -progname=mf \mode:=ljfour; mag:=1; nonstopmode; input pzcmi7t' failed to make pzcmi7t.tfm.
kpathsea: Appending font creation commands to missfont.log.

! Font OT1/pzc/m/it/10=pzcmi7t at 10.0pt not loadable: Metric (TFM) file not fo
<to be read again>
l.5 $\mathpzc{X}

PS: It seems I already got psnfss package.

Saits-MacBook-Pro:~ sait$ sudo tlmgr install psnfss
tlmgr: package repository http://mirrors.rit.edu/CTAN/systems/texlive/tlnet
tlmgr install: package already present: psnfss
  • Which font did you use it for your proofs?
    – Aradnix
    Jun 18, 2015 at 6:04
  • I am not sure. I am simply doing $\chi$, etc.
    – Sait
    Jun 18, 2015 at 6:06
  • Rather than $\chi$ it is much closer to $\mathcal{X}$. I suspect that it is an X in a particular font.
    – user30471
    Jun 18, 2015 at 6:07
  • They both not quite same with the given image, as I said.
    – Sait
    Jun 18, 2015 at 6:10
  • It is the Chancery font or TeX Gyre Chorus: fontspace.com/gust-e-foundry/texgyrechorus
    – user2478
    Jun 18, 2015 at 6:47

1 Answer 1


It is an X in the mathpzc font:

enter image description here



  • I get an error: I can't find file 'pzcmi7t'. Should I need to install a library?
    – Sait
    Jun 18, 2015 at 6:16
  • @Sait It sounds like you need to install the pnsfss fonts. If you are using TeXLive then you can do this from the TeX Live Utility.
    – user30471
    Jun 18, 2015 at 6:58
  • thanks. Can you please check my updated question?
    – Sait
    Jun 18, 2015 at 8:33
  • 1
    @Sait You should post this as a follow-up question.
    – user30471
    Jun 18, 2015 at 9:46

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