Hi. 2010/11/24 Aditya Mahajan <adit...@umich.edu>: > On Wed, 24 Nov 2010, Vladimir Lomov wrote: > >> Hi. >> >> The command \iint is defined in context (mkiv) but it doesn't produce >> the desired sign. What I should do to make it appear? (in log file I see >> that LMMath font desn't contain such symbol but I don't know much about >> font mechanism of context, btw in latex I could easily get that symbol >> so I think it should be in 'standard' math font). > > No, the symbol is not in the 'standard' math fonts, and this is trouble. > Like LaTeX, we also fake the glyph in MkII. In MkIV, we check if the font > contains that glyph; if not we fake it. Currently, that test is failing. > > A temporary workaround (for LM) is to redefine: > > \def\repeatintegral#1#2#3% > {\let\dointlimits\donothing > \let\dodointlimits\intlimits > %\iffontchar\textfont\zerocount#1\relax > % %\edef\dodorepeatintegral{\utfchar{#1}}% > % \let\dodorepeatintegral#2% > %\else > \fakerepeatintegral{#3}% > %\fi > \futurelet\next\dorepeatintegral} > > and then \iint \iiint etc will work. Thank you for advice (I had to regenerate format to see the result, because I changed the definition in 'math-int.mkiv') but the result is terrible for inline math and normal for displaystyle.
Moreover I found that this solution would give unexpected result if one use \setupmathematics[integral=displaylimits], consider the following example: <example name="ex7_1.tex"> \setupmathematics[integral=displaylimits] \starttext Ordinary integral: $\int_{a}^{b}f(x)\text{d}x=F(b)-F(a)$. Ordinary integral: $\int\limits_{a}^{b}f(x)\text{d}x=F(b)-F(a)$. \startformula \int_{a}^{b}f(x)\text{d}x=F(b)-F(a). \stopformula Double integral: $\iint_{D} f(x,y) dx dy$ Double integral sign (faked symbol) could cause incorrect result: \startformula \iint_{D} f(x,y) \text{d}x \text{d} y \stopformula \stoptext </example> (I didn't remember where exactly I found command \setupmathematics.) > Hans, do you know what the \textfont check is not working for LM? > The ideal solution is to add esint glyphs to the LM math virtual font. I > did not work on this because I was assuming that opentype LM math will be > out soon. But it seems that right now, the only decent opentype math font is > Cambria. Both Stix and Asansa give really horrible spacing at times. IMHO, Cambria looks very odd. I prefer to use CM fonts, the design for different font families (serif, sans, monospace) is more balanced than any other font families have. --- WBR, Vladimir Lomov ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________