comma for "decimal point" not recognized in \hspace

Created by: davidfarmer

I was processing a LaTeX file that contained \hspace{0,5cm} in an equation. This gave a MathJax error: Missing dimension or its units for \hspace.

The answer to issue #169 (closed) described a way to switch from US to European notation for numbers. I couldn't tell if that would make a difference in my case, but what I would really like is for either notation to work in all cases, because it is nontrivial for me to detect which notation is used be a particular author (I am using MathJax to display the math in papers written by other people).