LaTeX symbol for a particular chi-squared

Question

In the book An Introduction to Error Analysis: The Study of Uncertainties in Physical Measurements by J. R.Taylor I find the following formula:

enter image description here

In LaTeX, does it exist any symbol for enter image description here shown above?

That is more correct in the general case, but for a single character, aren't they equivalent? — Mike Renfro, Jun 28 '14 at 23:48
@MikeRenfro For this particular case, yes... but it is always a good practice to keep everything affecting what it should, specially if this is going to go inside a macro :) — Mario S. E., Jun 29 '14 at 00:09

score 28 · Accepted Answer · answered Jun 29 '14 at 13:03

28

% arara: pdflatex

\documentclass{article}

\begin{document}
\[\tilde{\chi}^2=\frac{1}{d}\sum_{k=1}^{n} \frac{(O_k - E_k)^2}{E_k}\]
\end{document}

enter image description here

answered Jun 29 '14 at 13:03

LaRiFaRi

1 Answers1