Hi all, I used to compile a beamer file with LuaLaTeX to generate a PDF for presentation then convert the beamer file to XHTML with LaTeXML for Web page. Recently I begin to use ConTeXt so I try to get a PDF for presentation and also XML/HTML output from a single ConTeXt file. I have a few questions about XML/HTML output of Math. 1. In case inline math mode with \displaystyle, we get wrong output of "\int_a^b"; lower limit and upper limit are interchanged and further "b" is a bit larger and an integral symbol is rather small. (It looks "\displaystyle" is not effective, e.g see "\frac".) In case display math mode, we get very weird output of "\int_a^b". It is difficult to explain how weird it is but something like an output of "b_{\int}^a". Please check an attatched sample. We get the similar kind of weird output of "\sum_{n=0}^{\infty}". Due to these, it is impossible to use XML/HTML output of ConTeXt in real use. 2. \math{\Vmatrix{\vI, \vj, \vk; a_{1}, a_{2}, a_{3}; b_{1}, b_{2}, b_{3}}} \vI, \vj, \vk are disappeared in xml/html output. What happend? BTW, if we put "a" (or any alphabet?) in fron of \vI, then we get every elements (but of course we get unnecessary "a" also). ------------- bSample \setupbackend[export=yes] \definemathmatrix[vmatrix][matrix:bars] [simplecommand=Vmatrix] \define[1]\vsym{\text{\math{\bi #1}}} \define\vI{\vsym{i}} % \define\vi{\vsym{i}} \define\vj{\vsym{j}} \define\vk{\vsym{k}} \starttext A simple math. \m{y=\sin x}, \m{\displaystyle y=\frac{\log x}{x}}, \m{\mathbf{A+B=C}}, \m{\mathbb{R}}, \m{\mathfrak{A}}, \m{\mathcal{S}}, A bit complex math. \m{\displaystyle\int_{a}^{b}x\sin x\,dx=-[x\cos x]_{a}^{b}+\int_{a}^{b}\cos x\,dx} \startformula \int_{a}^{b}x\sin x\,dx=-[x\cos x]_{a}^{b}+\int_{a}^{b}\cos x\,dx \stopformula \m{\displaystyle\sum_{n=0}^{\infty}\frac{x^n}{n!}} \startformula \sum_{n=0}^{\infty}\frac{x^n}{n!} \stopformula \math{\Vmatrix{\vI, \vj, \vk; a_{1}, a_{2}, a_{3}; b_{1}, b_{2}, b_{3}}} \math{\Vmatrix{a\vI, \vj, \vk; a_{1}, a_{2}, a_{3}; b_{1}, b_{2}, b_{3}}} \stoptext ------------- eSample Thanks in advance. Best regards, Atsuhito Kohda