Hi Nasser, > I know the problem is due to large size of the equation. > Editor tells me it is 208,987 characters long so I have > to remove it. But the question is why this error in mathjax > only?
Because l3regex is used to clean-up the math. There are spaces before brackets and other issues othewise. MathJax doesn't seem to like that. So it is best to keep equation size in some reasonable limits :) Best regards, Michal