Attempt to fix fatal "Command \x already defined." error.

Seems like Sphinx 6.2.1 changed (relative to 6.1.3) when it loads ...

/usr/local/texlive/2022/texmf-dist/tex/latex/pict2e/pict2e.sty

... which appears to define \x. 6.2.1 loads it *before* loading our preamble file, whereas 6.1.3 loaded it after.

Author: rdzman

mathCmds.tex.txt

@@ -46,7 +46,7 @@
 \newcommand{\h}{\rvec{h}}
 \newcommand{\HH}{\cvec{h}}      % \H already defined
 
-\newcommand{\x}{\rvec{x}}
+\renewcommand{\x}{\rvec{x}}
 \newcommand{\y}{\rvec{y}}
 \newcommand{\z}{\rvec{z}}