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Changing font for math function
by Maggyero 16 May '15

16 May '15

> Aditya Mahajan: > By default, in all three formats the font for \log is mathupright rather > than textrm. There needs to be a rationale for ConTeXt default to be > different from other formats. Do you have any reference to a math book or > journal that uses text fonts for \log-like operators? Thanks for the examples. I had forgotten that math fonts can differ from text fonts. Now I understand why you use \mathupright (which, according to the source code is identical in math mode to \mathrm and \rm). And I know that math fonts have different kerning and ligatures than text fonts. But how is that in LaTeX, kerning and ligatures in math mode inside \mathrm are the same as those of the TEXT font (while in ConTeXt \mathrm still uses the kerning and ligatures of the math font, which seems logical)? Compare the following: LaTeX: \documentclass{article} \begin{document} affinity\par $\mathrm{affinity}$\par % kerning and ligatures of TEXT mode with math font \end{document} ConTeXt: \starttext affinity\par $\mathrm affinity$\par % kerning and ligatures of MATH mode with math font \stoptext Maggyero

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2 issues in phys-dim.mkiv
by Maggyero 16 May '15

16 May '15

I've tried the unit interface today, and I've noticed two issues with the following example: \setupunits[alternative=text] \starttext $\unit{-4.6e-3 km s^-1}$ \stoptext 1. Minus superscripts for UNITS (so 's^-1' here—not 'e-3', which is fine) are converted to hyphens with the 'text' unit alternative (with the default 'mathematics' unit alternative everything is fine): 2. The times symbol between the number and the 10^-3 (e-3) is incorrectly spaced (as an ordinary math atom instead of a binary math atom) so doesn't look good. Maybe Hans could change \def\digitstimessymbol{\times} to \def\digitstimessymbol{\ifmmode\times\else${}\times{}$\fi} in phys-dim.mkiv?

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horizontal spacing
by henman 16 May '15

16 May '15

In the below example, used with the latest standalone ConTeXt version, I can only get \hskip to work when the parameter is 1 dimension unit. e.g. 1em or 1cm for example. How can I get a larger horizontal space say 3em , rather that having to write \hskip 1em \hskip 1em \hskip 1em three times? ------------- minimal example follows: \starttext \framed[ width=8cm, height=4cm, align={flushleft}] {Here is the minimum example: \crlf \hskip 1em 1em space before this line? \crlf \hskip 2em 2em space before this line? \crlf \hskip 3em 3em space before this line? \crlf \hskip+1em 1em space before this line? \crlf \hskip+2em 2em space before this line? \crlf \hskip+3em 3em space before this line? \crlf \hskip+1cm 1cm space before this line? \crlf \hskip+2cm 2cm space before this line? \crlf \hskip+3cm 3cm space before this line? \crlf \stoptext

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Changing font for math function
by Maggyero 16 May '15

16 May '15

> Aditya Mahajan: > The default should be \mathupright (as is the case in amstex and latex, and probably also plaintex). > Hans Hagen: > next beta: when one of the stylealternatives text mode else mathmode > (default nothing == math upright) > Hans Hagen: >> Because like in \mtext, the \text command is ESSENTIAL (for the function names to have the mathcodes, kerning and ligatures of the text mode instead of the ones of the math mode). >that is not needed because if you use a style known as text style a text font is used Alright, but why not ALWAYS use your text style (or my \text), why talking about \mathupright then? \mathupright should never be used to display a name in text style in my opinion. I don't get it, is there something that I missed with that \mathupright? (And I'm not managing to download the new beta of yesterday so I don't have access to the new code yet). Appart from that story of \text or not \text, what do you think about the suggestion that I gave in the conclusion of my previous post? Do you plan to still use version 1 or to implement version 2 after the freeze for TeXLive 2015? My conclusion was: CONCLUSION. — It all comes down to the choice of the best user interface for math functions and math texts (usually used as subscripts of variables). Their styles and colors is handled with \setupmathematics. There are two choices of user interface: 1. $\normalmathop{\mfunction{Arsinh}}\nolimits x\ \text{and}\ n_{\mtext{air}}$. 2. $\mfunction{Arsinh} x\ \text{and}\ n_{\mtext{air}}$. First, the default functionstyle and textstyle in \setupmathematics should be \rm\tf (the text mode equivalent of \mathupright, as we are always in text mode thanks to the \text hardcoded in \mfunction and \mtext). Then, in the 1st solution \normalmathop is used instead of \mathop because the latter is modified by ConTeXt to convert \rm to \mf, which makes \setupmathematics[functionstyle=\rm] without effect. The 2nd solution is obviously way cleaner, that is why I think it should be preferred. The implementation is given in my '2nd DEFINITION of \mfunction' for replacing the existing definition in math-ini.mkiv: ——————————————————————— \unexpanded\def\mfunction{\dosingleempty\domfunction} \def\domfunction[#1]#2% {\iffirstargument \doifelse{#1}{op}{\normalmathop{\text{\usemathematicsstyleandcolor\c!functionstyle\c!functioncolor#2}}}{\doifelse{#1}{limop}{\normalmathop{\text{\usemathematicsstyleandcolor\c!functionstyle\c!functioncolor#2}}}{\normalmathop{\text{\usemathematicsstyleandcolor\c!functionstyle\c!functioncolor#2}}\nolimits}} \else \normalmathop{\text{\usemathematicsstyleandcolor\c!functionstyle\c!functioncolor#2}}\nolimits \fi} ——————————————————————— We also saw that \mfunctionlabeltext is inconsistent with ConTeXt \labeltext because the former has a style attached to it, so \mfunctionlabeltext should be removed from math-ini.mkiv and \mfunction{\mathlabeltext } should be used instead when needed. To go even further in userfriendlyness, we the new macro \definemathcommand should be added in math-ini.mkiv: ——————————————————————— \unexpanded\def\definemathfunction{\dodoubleempty\dodefinemathfunction} \def\dodefinemathfunction[#1][#2]#3% {\ifsecondargument \definemathcommand[#1]{\mfunction[#2]{#3}} \else \definemathcommand[#1]{\mfunction{#3}} \fi} ——————————————————————— Finally, with this new \mfunction definition and the removal of the misleading \mfunctionlabeltext, the functions defined in math-def.mkiv should be rewrite as: ——————————————————————— \definemathcommand[cos]{\mfunction{\mathlabeltext{cos}}} % Or \definemathcommand[cos]{\mfunction[nolop]{\mathlabeltext{cos}}}, it is the same. \definemathcommand[det]{\mfunction[limop]{\mathlabeltext{det}}} \definemathcommand[diff]{\normalmathop{\text{\mathfunctionstyle d}}\mathopen{}} %etc. ——————————————————————— or ——————————————————————— \definemathfunction[cos]{\mathlabeltext{cos}} % Or \definemathfunction[cos][nolop]{\mathlabeltext{cos}}, it is the same. \definemathfunction[det][limop]{\mathlabeltext{det}} \definemathcommand[diff]{\normalmathop{\text{\mathfunctionstyle d}}\mathopen{}} % It is a special function so it should still be treated with the more general \definemathcommand. %etc. ——————————————————————— ConTeXt users are now provided, if Hans agrees to implement the code given in this conclusion, with three extremely useful macros: — \mtext (that should be used for all math texts such as subscripts of variables): $n_{\mtext{air}}$; — \mfunction (the equivalent of LaTeX \operatorname macro of the amsopn package): $\mfunction{Arsinh} x$ $\mfunction[op]{Arsinh} x$ or equivalently $\mfunction[limop]{Arsinh} x$; — \definemathfunction (the equivalent of LaTeX \DeclareMathOperator macro of the amsopn package): \definemathfunction[arsinh]{Arsinh} $\arsinh x$ \definemathfunction[arsinh][op]{Arsinh} $\arsinh x$ or equivalently \definemathfunction[arsinh][limop]{Arsinh} $\arsinh x$. Maggyero

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before= and after= for \setuphighlight
by Kate F 15 May '15

15 May '15

Hi, I'm looking for something like \definehighlight which I can use to markup various things in inline body text. I want different environments to be able to have their own setups to configure how these appear, just as \setuphighlight would provide. However there's one situation which I can't think how to handle; I'd like to have a setup append and prepend some text, just like before= and after= for various other setups. If \setuphighlight had before= and after=, this would suit me perfectly. But it doesn't. Is there something similar to \setuphighlight which has before= and after=? Or any other ideas? Thank you, -- Kate

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vim module: modify line wrapping
by Andreas Schneider 15 May '15

15 May '15

Hi, vimtyping already offers line wrapping by specifying "lines=split". However, some /lines/with/very/long/sequences/of/somehow/breakable/chars do not break at all. In that given example, I would like to also allow vimtyping to break lines at "/". Is something like that possible? And if so: how? Best regards, Andreas

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new beta
by Hans Hagen 15 May '15

15 May '15

Hi, I uploaded a new beta. This is the last before a current that goes on tl 2015. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

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ordinaldaynumber not working in latest beta
by Christoph Reller 15 May '15

15 May '15

Hi, The \ordinaldaynumber{...} stopped working for me. Is this a bug? Cheers, Christoph Reller \starttext \ordinaldaynumber{5} \stoptext ! You can't use `\numexpr' in vertical mode <recently read> \numexpr \ordinaldaynumber #1->\clf_ordinal \numexpr #1\relax {\currentlanguage }

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bug in latest beta?
by Pablo Rodriguez 15 May '15

15 May '15

Hans, after upgrading to beta from 2015.05.13 23:52, the compilation of most of my documents crashes. I get two different errors depending on the document: error: .../ctxbeta/tex/texmf-context/tex/context/base/typo-itc.lua:148: attempt to call global 'setfield' (a nil value) error: .../ctxbeta/tex/texmf-context/tex/context/base/typo-itc.lua:159: attempt to call global 'setfield' (a nil value) I cannot provide a minimal sample now. I wonder whether the error itself might be enough to fix the issue. Many thanks for your help, Pablo -- http://www.ousia.tk

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Setup narrower body text for sections
by Kate F 14 May '15

14 May '15

Hi, I'm typesetting unix manpages, where I want each section heading to be outset slightly relative to the body text of that section. In other words, I want the body text to have a left margin which is narrower than the page width. I know I can do this with something like: \startsection[title=Synopsis] \startnarrower blah blah blah \stopnarrower \stopsection But I'd much rather set the left margin (or achieving the effect of \startnarrower by some other means) using the setups for \startsection instead. That way I won't need to have \startnarrower .. \stopnarrower all over my document. I tried \setuphead[section][margin=3cm] but the margin applies to the heading, not to the body text of the section. Of course I could set margin=-3cm and make the entire page narrower, but then I'd also need to adjust the headers and footers to match. I thought I could perhaps use before= and after=, but those are of course before and after the heading, not before and after the body text. Is there a setup to wrap some commands around the body text? Or must I define my own \startxyz .. \stopxyz thingy, or is there a better way? Thanks, -- Kate

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