ntg-context September 2017

ntg-context@ntg.nl

39 participants
71 discussions

mathalignment vs mathmatrix
by Henri 09 Sep '17

09 Sep '17

Dear devs, In the latest beta the interaction between mathalignment and mathmatrix is broken. The biggest problem is that documents containing this pattern do not typeset anymore at all! (That makes 100 errors; please try again.) Please fix. Cheers, Henri --- \define\Up{\mathord\Uparrow} \define\Dn{\mathord\Downarrow} \starttext \placeformula \startformula \startmathalignment \NC \psi_{+,\Up} ... \startmathmatrix \stopmathmatrix \NR \NC \psi_{+,\Dn} ... \NR \stopmathalignment \stopformula \stoptext

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Expandable \doifelse tests
by Henri Menke 08 Sep '17

08 Sep '17

Dear list, Motivated by this question on TeX.SX https://tex.stackexchange.com/questions/370868 I was fiddling around with the \doifelse conditionals. I noticed that most of them are not expandable, which makes it very difficult to concatenate them. Here a simple example \starttext \doifelse{a}{% \doifelse{x}{x}{a}{b}% <- evaluates to "a" but not expandable }{yes}{no} \stoptext This outputs "no" even though "a" is equal to "a". Would it be possible to substitute these conditionals by expandable ones? I would volunteer to help make them expandable. Cheers, Henri

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Background with rounded corners (Metafun)
by Fabrice Couvreur 08 Sep '17

08 Sep '17

Hello, I would like to have three corners rounded as in the figure. Thank you Fabrice \definecolor[MyColorA][r=0.8784, g=0.8784, b=0.8784] \definecolor[MyColorB][c=0.00,m=0.27,y=1.00,k=0.00] \startuseMPgraphic{MyFrame} path b ; picture p ; p := textext.rt("\bf\tfx\white\framedtextparameter{Title}") ; p := p shifted (.3EmWidth,OverlayHeight-.6EmWidth) ; b := boundingbox p enlarged .3EmWidth ; fill OverlayBox withcolor \MPcolor{MyColorA} ; fill b withcolor \MPcolor{MyColorB} ; draw p ; setbounds currentpicture to boundingbox currentpicture enlarged 2mm ; \stopuseMPgraphic \defineoverlay [MyFrame] [\useMPgraphic{MyFrame}] \defineframedtext [MyFrame] [frame=off, foregroundstyle={\switchtobodyfont[10pt]}, background=MyFrame, align={verytolerant}, height=fit] \definefloat [recipe] [figure] \setupfloat [recipe] [default={right,none}] \showframe \starttext \placerecipe{} {\startMyFrame[Title=Info,width=10cm] L'équivalent vingt pieds (EVP) est une unité de mesure de conteneurs (de longueur courante 20 pieds, soit environ \unit{6,1 meter}). 1 EVP représente environ \unit{38,5 cubic meter}. \stopMyFrame } \input knuth \stoptext

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Re: [NTG-context] Tagging and Math Matrix
by Christoph Reller 07 Sep '17

07 Sep '17

On Wed, 6 Sep 2017 11:25:51 +0200 Hans Hagen <pragma(a)wxs.nl> wrote: > On 9/6/2017 9:55 AM, Christoph Reller wrote: > > On Tue, 5 Sep 2017 16:29:52 +0200 Hans Hagen <pragma(a)wxs.nl > > <mailto:pragma@wxs.nl>> wrote: > > > > On 8/30/2017 9:45 AM, Christoph Reller wrote: > > > On Mon, Dec 28, 2015 at 3:45 PM Christoph Reller > > > <christoph.reller(a)gmail.com> wrote: > > > > > > There seems to be a problem with the structure information added > > > when using \startmatrix: > > > > > > A fix would be very much appreciated. > > > > should be ok now > > > > > > Thank you Hans for this fix! > > > > There seems to be, however, still a minor issue with a more complete MWE: > > \math{ > > \startmatrix > > \NC A \NC B \NR > > \NC C \NC D \NR > > \stopmatrix} > > can you test with > > \def\math_matrix_process#1#2% > {\forgettagging % otherwise dummy mrows and such > \dowithnextbox > {\scratchdimen\dimexpr(\nextboxdp-\nextboxht)/2 > \ifcase#2\or+\mathaxisheight\textfont2\fi\relax > > > \ifcase#1\relax\or\lower\scratchdimen\or\or\raise\scratchdimen\fi\hbox\bgroup > \normalstartimath > \mathmatrixparameter\c!left > \vcenter{\unvbox\nextbox}% > \mathmatrixparameter\c!right > \normalstopimath > \egroup}% > \vbox} > Indeed, this is much better! Thank you! I recommend to include this as a patch in ConTeXt. However: Testing never stops ;-) I have the following MWE: \definemathmatrix[pmatrix][left={\left(},right={\right)}] \math{ \startpmatrix \NC A \NC B \NR \NC C \NC D \NR \stoppmatrix} This (including your suggested fix) results in the following structure tree: <document> |-<math> | '-<mrow> | '-<mrow> | '-<mfenced> | '-<mrow> '-<math> '-<mtable> |-<mtr> | |-<mtd> | | '-<math> | | '-<mrow> | | '-<mi> | | '-"A" | '-<mtd> | '-<math> | '-<mrow> | '-<mi> | '-"B" '-<mtr> |-<mtd> | '-<math> | '-<mrow> | '-<mi> | '-"C" '-<mtd> '-<math> '-<mrow> '-<mi> '-"D" I think that the <mtable> should be located within the <mfenced>, shouldn't it? Cheers, Christoph

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Substituting Greek characters in math mode
by Alan Bowen 07 Sep '17

07 Sep '17

I should like to have the Brill font substitute for the Greek alphabet (upper and lower cases) as well for the numerals in Tex Gyre Termes Math. So far, I have been able to get the Brill numerals (oldstyle) but nothing more: the Greek letters in math mode are from Termes Math. Here is what I have: \definefontfamily[mainface][serif][Brill] [protrusion=quality, expansion=quality, mode=node, force=yes, ] \definefallbackfamily[mainface][mm][Brill][range={0030-0039, 0391-03A9, 03B1-03C9}, scale=1] \definefallbackfamily [mainface] [mm] [Brill] [preset=math:lowercasegreeknormal] \definefallbackfamily [mainface] [mm] [BrillItalic] [preset=math:lowercasegreekitalic] \definefallbackfamily [mainface] [mm] [Brill] [preset=math:uppercasegreeknormal] \definefallbackfamily [mainface] [mm] [BrillItalic] [preset=math:uppercasegreekitalic] \definefontfamily[mainface][mm][TeX Gyre Termes Math][scale=0.94] \setupmathematics[autopunctuation={all}, ucgreek=normal, lcgreek=italic] \setupbodyfont[mainface,10pt] \starttext A~B~C~a~b~c \emph{A~B~C~a~b~c}\quad math: \m{A~B~C~a~b~c} 0123456789\quad math: \m{0123456789} δ \emph{δ}\quad math: \m{δ} π \emph{π}\quad math: \m{π} Π \emph{ Π}\quad math: \m{Π} \stoptext Any suggestions or pointers will be most welcome. Alan

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issues with \scitebuffer and \sciteinlinebuffer
by Pablo Rodriguez 06 Sep '17

06 Sep '17

Hans, after updating to latest beta (from 2017.09.05 15:10) to enjoy the new none method in the scite buffers, I have the following sample: \setupindenting[yes, always, big] \usemodule[scite] \setuptyping[margin=2cm] \startbuffer[typebuffer] | \ConTeXt\ \ConteXt \par \stopbuffer \starttext \scitebuffer[typebuffer] \scitebuffer[none][typebuffer] \letterbar a \sciteinlinebuffer[typebuffer]. b \stoptext And I’m experiencing the following issues: 1. "|" breaks compilation when method is set to "none". 2. "\sciteinlinebuffer" adds always an extra blank space after it. 3. Method "none" treats spaces as linebreaks and removes "\". 4. \setuptyping and \setuptype don’t work with the scite buffers. What am I doing wrong? Many thanks for your help, Pablo -- http://www.ousia.tk

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Font DejaVu with a font for Mathematics
by Fabrice Couvreur 06 Sep '17

06 Sep '17

Hello, I use for the documents of my students the font DejaVu because I find that it is very readable on paper. Unfortunately, this is not a font for writing Mathematics. I would like to use DejaVu font for text and a font to write mathematical formulas. What do you recommend ? Thank you. Fabrice

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Obtaining an old standalone
by Roger Mason 06 Sep '17

06 Sep '17

Hello, Is there a means of obtaining an old standalone? I would like to get ConTeXt ver: 2016.01.04 15:47 MKIV beta fmt: 2016.1.4 Thanks, Roger

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Re: [NTG-context] Tagging and Math Matrix
by Christoph Reller 06 Sep '17

06 Sep '17

On Tue, 5 Sep 2017 16:29:52 +0200 Hans Hagen <pragma(a)wxs.nl> wrote: > On 8/30/2017 9:45 AM, Christoph Reller wrote: > > On Mon, Dec 28, 2015 at 3:45 PM Christoph Reller > > <christoph.reller(a)gmail.com <mailto:christoph.reller@gmail.com > >> wrote: > > > > There seems to be a problem with the structure information added > > when using \startmatrix: > > > > A fix would be very much appreciated. > > should be ok now > Thank you Hans for this fix! There seems to be, however, still a minor issue with a more complete MWE: \math{ \startmatrix \NC A \NC B \NR \NC C \NC D \NR \stopmatrix} The resulting structure tree is as follows: <document> '-<math> '-<mrow> '-<mtext> '-<mrow> |-<mrow> | '-<mtr> | |-<mtd> | | '-<math> | | '-<mrow> | | '-<mi> | | '-"A" | '-<mtd> | '-<math> | '-<mrow> | '-<mi> | '-"B" |-<mrow> (*) |-<mrow> | '-<mtr> | |-<mtd> | | '-<math> | | '-<mrow> | | '-<mi> | | '-"C" | '-<mtd> | '-<math> | '-<mrow> | '-<mi> | '-"D" '-<mrow> (*) The elements marked with (*) are IMHO unnecessary. Do you agree? Cheers Christoph

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Fwd: Re: The binomial coefficients do not look optimal
by Hans Hagen 05 Sep '17

05 Sep '17

-------- Forwarded Message -------- Subject: Re: [NTG-context] The binomial coefficients do not look optimal Date: Sat, 2 Sep 2017 18:35:53 +0200 From: Hans Hagen <pragma(a)wxs.nl> To: Mikael P. Sundqvist <mickep(a)gmail.com> On 9/2/2017 4:58 PM, Mikael P. Sundqvist wrote: > On Fri, Sep 1, 2017 at 7:49 PM, Hans Hagen <pragma(a)wxs.nl > <mailto:pragma@wxs.nl>> wrote: > > On 9/1/2017 1:56 PM, Mikael P. Sundqvist wrote: > > Hi, > > I stumbled upon this (see the attached file for the result): > > %%% Test file > \setupbodyfont[10pt] > \starttext > \startTEXpage[offset=10pt] > \type{\tbinom{n}{k}}: $\tbinom{n}{k}$, (does not look good, the > vertical space between $n$ and $k$ is too big) \par > \type{\binom{n}{k}}: $\binom{n}{k}$ (looks fine to me)\par > \type{\dbinom{n}{k}}: $\dbinom{n}{k}$ (does not look good, too > big parenthesis, even for displayed formulas).\par > \stopTEXpage > \stoptext > %%% End of test file > > I think something should be changed to get the binomial > coefficients to look better. In particular I am concerned about > the rather big parenthesis in displaystyle (and not so much > about the vertical space issue in \tbinom). > > /Mikael > > PS The result looked better if I used the lucida fonts, if that > helps. > > This is indeed font dependent. These binoms use a low level tex > primitive that uses a threshold for steps and that one is part of > the math parameters of a font and these are not that good for lm. As > I'm looking into some other low level side effect I was in the mood > for a configuration option for \setupmathfractions. > > So, in the next beta you can get the effects iof the attached: > > - relate the threshold to the bodyfont size > - use normal left/right fences instead > > fwiw, cambria and pagella look better too. Upto you to wikify it. > > Hans > > ----------------------------------------------------------------- > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.nl > <http://www.pragma-ade.nl> | www.pragma-pod.nl > <http://www.pragma-pod.nl> > ----------------------------------------------------------------- > > ___________________________________________________________________________________ > If your question is of interest to others as well, please add an > entry to the Wiki! > > maillist : ntg-context(a)ntg.nl <mailto:ntg-context@ntg.nl> / > http://www.ntg.nl/mailman/listinfo/ntg-context > <http://www.ntg.nl/mailman/listinfo/ntg-context> > webpage : http://www.pragma-ade.nl / http://context.aanhet.net > archive : https://bitbucket.org/phg/context-mirror/commits/ > <https://bitbucket.org/phg/context-mirror/commits/> > wiki : http://contextgarden.net > ___________________________________________________________________________________ > > > Thank you very much, I'm looking forward to the next beta, and I will > try to wikify it when I have tried it out. Also lucida looks better than > latin modern does at the moment. > > I am a bit confused about the different versions. I would have guessed > that there was \tbinom and \dbinom and that \binom used one of them > depending on if one is in text mode or in display mode (just as I would > expect \frac to behave like \tfrac in text mode and \dfrac in display > mode). But \tbinom looks very different from \binom in text mode (with > more vertical space). Is this on purpose? Have I missed something? One can configure those things but the absense of rules and presence of fences matters too (all kind of inter-this-or-that and above-below-this-or-that playts a role). Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

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ntg-context September 2017