- ntg-context - NTG Mailing Lists

Re: [NTG-context] Curiosity about math.random in LuaTeX
by Thierry Horsin 23 Aug '21

23 Aug '21

Hi everybody. I wonder how does math.random() work in context. I found that this subject was discussed more than ten years ago by Otared and Taco and Thomas. It is clear to me how to obtain new results upon typesetting the same file by changing the value of math.randomseed (with os.time()). If you don't change the seed, you get the same result upon each typesetting, and a seed is given in the .tuc file. For example I have this: ["randomseed"]=0x1.0741c18b8a4ep-6 How do I use (and is it possible to) this value to have the same result of math.random() upon typesetting another file (with a different name) ? I could provide a same fixed seed in both files, but for some reasons I would like to re-use some previous results of math.random() for which no seed was initially given in another .tex file. Thank you Thierry

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Bug with mathalignment and columns
by Jack Hill 23 Aug '21

23 Aug '21

Hi, When a mathalignment is started at the end of a multi-column page ConTeXt places it at the start of the previous second column instead of placing it on a new page. Here's my code to test: \starttext \startcolumns[n=4] \startluacode lorum = "Lorum ipsum dolor sit amet. " for i = 1, 98, 1 do context(lorum) end \stopluacode \startformula \startmathalignment[n=1] \NC y = ax \NR \NC a^2 + b^2 = c^2 \NR \NC x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \NR \stopmathalignment \stopformula \stopcolumns \stoptext Adding text after the formula seems to fix the issue, but that means I can't finish the page with a formula. It seems that it always places the formula at the top of the second column, regardless of how many columns there are. It also does this even if there are still empty columns (try changing 98 to 100 in the for loop). Jack

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lmtx update
by Benjamin Buchmuller 23 Aug '21

23 Aug '21

Hi, Here is another thing which worked previously for me: ConTeXt ver: 2021.07.30 00:57 LMTX fmt: 2021.8.8 int: english/english Now: ConTeXt ver: 2021.08.22 11:54 LMTX fmt: 2021.8.22 int: english/english Error: lua error: registered function call [396]: ...eXt/tex/texmf-context/tex/context/base/mkxl/anch-pos.lmt:1286: attempt to call a nil value (upvalue 'texgetparstate') stack traceback: ...eXt/tex/texmf-context/tex/context/base/mkxl/anch-pos.lmt:1286: in function <...eXt/tex/texmf-context/tex/context/base/mkxl/anch-pos.lmt:1262> (...tail calls...) 129 \NC \unit{0.88 angstrom} 130 \NC \unit{2.02 angstrom} 131 \NC \unit{2.03 angstrom} 132 \NC \unit{1.90 angstrom} 133 \NC \unit{4.99 angstrom} % rmsd #1/a:14-61 & backbone to #5/a:103-150 & backbone 134 \NC \unit{1.88 angstrom} 135 \NC \unit{5.20 angstrom} % rmsd #1/a:46-55 & backbone to #5/a:135-144 & backbone 136 \NC \NR 137 \HL 138 \stoptabulate The difficulty here is that when I copy the "faulty" part (my table) to another document (including all relevant defs etc.) it just works fine. So, I think it must have to do something with the placement of the float on the page. Any hints what has changed? Thanks! Benjamin > On Aug 20, 2021, at 12:00, ntg-context-request(a)ntg.nl wrote: > > lmtx update

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pgfplots module needs update from December
by Gavin 22 Aug '21

22 Aug '21

Hello list, The module pgfplots has a bug that produces an error for polar plots, and perhaps in other situations. tex error > tex error on line 20 in file ./chapter02-t-b-728d71c9823ff6bed735c6d6e1758718.tmp: Undefined control sequence <macro> \pgfplots@environment@polaraxis@ [#1]->\begin {axis}[#1,data cs=polar,axis type=polar] <line 3.20> ] This bug was described and fixed on the pgfplots GitHub repository in December (https://github.com/pgf-tikz/pgfplots/pull/382) I fixed the bug on my personal installation, but when I update the modules using the wiki instructions, the bug returns. In the LMTX installation, the file requiring the fix is: context-osx-64/tex/texmf-modules/generic/pgfplots/pgfplots.code.tex The fix is: Line 7928: change “\begin{axis}" to “\axis” Line 7934: change “\end{axis}" to “\endaxis” Is there anything I can do to aid in getting this fixed in the distribution? Thanks, Gavin

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Adjustment for header and footer
by Fabrice Couvreur 22 Aug '21

22 Aug '21

Hi, In the file below (not minimal, sorry!) I am using commands from Wolfgang in different threads. We can see that the top frame overflows into the text: how to correct this ? I would also like the top and bottom stroke to be adjusted to the width of the paper. Thanks Fabrice \useMPlibrary[dum] \setuplayout [topspace=1cm, backspace=3cm, cutspace=3cm, leftmargin=.75cm, leftmargindistance=.5cm, rightmargin=1.25cm, rightmargindistance=1cm, header=20mm, headerdistance=1cm, footer=20mm, footerdistance=1cm, width=middle, height=middle, location=middle] \setupbodyfont [newcomputermodern-book,11pt] \definefont [TextStyle] [SansBold*default sa 1.2] \defineframed [headerframed] [frame=off, height=fit, width=fit, ] \setupbackgrounds [header] [text] [frame=off,bottomframe=on,width=\widthpaper, framecolor=darkred,rulethickness=1pt] \setupbackgrounds [footer] [text] [frame=off,bottomframe=on,width=max, framecolor=darkred,rulethickness=1pt] \setupfootertexts [margin] [] [{\offset[y=\strutdp]{\externalfigure[dum][factor=max]}}] [] [{\offset[y=\strutdp]{\externalfigure[dum][factor=max]}}] \startsetups [headertext] \setupheadertexts [{ \startframed [headerframed] [foregroundstyle=TextStyle,align=middle] \getvariable{headertext}{location}\\ Spécialité mathématiques\\ \getvariable{headertext}{title} n\high{\tfxx \bf o}\,\getvariable{headertext}{number} \stopframed }] \setupheadertexts [{ \startframed [headerframed] [align=flushleft,foregroundstyle=\ssx] Lycée LA SALLE\\ Durée : \getvariable{headertext}{time}\\ \date[d=\getvariable{headertext}{day},m=\getvariable{headertext}{month},y=\getvariable{headertext}{year}] \stopframed }] [{ \startframed [headerframed] [align=flushright,foregroundstyle=\ssx] \externalfigure[dum] [factor=max] \stopframed }] \stopsetups \setvariable{headertext}{set}{\directsetup{headertext}} \setvariables [headertext] [title={Devoir maison}, number={2}, day={22}, month={08}, year={2021}, location={Terminale}, time={2 heures}] \starttext \samplefile{lorem} \stoptext

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Size of root symbol
by Bruce Horrocks 22 Aug '21

22 Aug '21

Is there a simple way to get both root signs in this MWE to be the same size? \starttext \startformula \sqrt[3]{4n} \ne \sqrt[3] {n} \stopformula \stoptext Thanks. — Bruce Horrocks Hampshire, UK

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Losing a character during line break at a hyphen
by Bruce Horrocks 22 Aug '21

22 Aug '21

Not sure whether this is a ligature problem or a hyphenation problem or both! In the following MWE, the line breaks at the hyphen following "Diffe", but one of the f's is lost so the PDF shows "Dife-". Latest LMTX, version 2021.08.19 19:48 \starttext Twenty years after receiving it as a Christmas present, I have finally got around to reading The Code Book by Simon Singh. Written in 1999, when E-commerce was still relatively new, the book provides accessible explanations of the workings of Diffe-Hellman-Merkle key exchange, and Rivest, Shamir and Adleman (RSA) public-key cryptography. \stoptext Output PDF attached. — Bruce Horrocks Hampshire, UK

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Re: [NTG-context] Strange new behaviour of the mailing list
by Henning Hraban Ramm 21 Aug '21

21 Aug '21

> Am 31.07.2021 um 21:19 schrieb Bruce Horrocks <bruce.horrocks(a)icloud.com>: > > On 31 Jul 2021, at 14:56, Henning Hraban Ramm via ntg-context <ntg-context(a)ntg.nl> wrote: >> >> Ah, I didn’t recognize you mean this. >> >> Since the mail goes through the mailing list software, the sender must not be the original sender any more – ntg.nl is not allowed to send emails for a different domain. Many securely configured mail servers reject “faked” sender addresses, as they should. Look up DANE etc. > > That's all well and good but it obscures the sender in your mail client. If you look at the screen shot you can see that the older emails all display the sender's name in the list. Under the new system (just the topmost entry, shown selected) every email comes from "ntg-context(a)ntg.nl" which is completely useless when you want to visually scan down the list for a particular person. It doesn’t make sense to argue about this, but it’s apparently a setting (or unchangeable behavior) of your Email app. My Apple Mail 12.4 on Mojave shows the same message like attached (dark mode). Hraban

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different preffixsegments for different reference formats
by Pablo Rodriguez 21 Aug '21

21 Aug '21

Dear list, I have the following sample: \starttext \definereferenceformat[itsc][in] \setupreferencestructureprefix[itsc][default] [prefixsegments=section] \chapter{Chapter} \section[b]{Section} \itsc[b] and \in[b] \stoptext How can I get that \itsc gets "prefixsegments=section" without affecting to \in? Many thanks for your help, Pablo -- http://www.ousia.tk

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ConTeXt support for Panic's Nova editor
by Felix Krause 20 Aug '21

20 Aug '21

Hi folks, I made a TeX extension for Panic's Nova editor (https://nova.app) with explicit ConTeXt support, available here: https://extensions.panic.com/extensions/org.flyx/org.flyx.tex/ It features syntax highlighting, suggestions for builtin commands, code folding, auto-completion of stop commands, and structural overview of headings in the symbols sidebar. It also enables the editor's spell checking for non-command text. I don't recommend buying this editor specifically for your TeX needs, but since I own it anyway I thought it would be nice for it to have TeX support. Cheers, Felix

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