Sign up ×
TeX - LaTeX Stack Exchange is a question and answer site for users of TeX, LaTeX, ConTeXt, and related typesetting systems. It's 100% free, no registration required.

I don't like the $\xi$ symbol that mathpazo comes with, so I want to go back to Computer Modern for that symbol alone. How can I do this?

share|improve this question
You should follow the instructions listed in Importing a Single Symbol From a Different Font. –  Werner Oct 5 '12 at 22:41
I looked at that question, but I'm not sure how to find what number the \xi symbol is in the letters symbols –  KingOliver Oct 5 '12 at 22:43

1 Answer 1

up vote 10 down vote accepted

The code is in fontmath.ltx:


To make the change you want, you can fetch the CM definition of letters and change it into


and then

share|improve this answer
Worked! Thanks for the help –  KingOliver Oct 5 '12 at 22:58
when i use \DeclareSymbolFont{CMlargesymbols}{OMX}{cmex}{m}{n}‎‎‎ \DeclareMathSymbol{\‎‏‎sum‎}{\mathop}{CMlargesymbols}{"50}‎‎‎, it results an error: "Command '\sum' already defined". how can i change the sum symbol? –  smh Dec 7 '12 at 10:03
@smh I don't get this error; please, open a new question, with a link to this one, adding a minimal example producing the error. –  egreg Dec 7 '12 at 12:13

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

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