- ntg-context - NTG Mailing Lists

Re: [NTG-context] Code lua in a table
by Jeong Dal 21 Jul '20

21 Jul '20

Dear Fabrice, You may split Binom(n,k) function into two functions as following: ***** \startluacode P={} combi = P function P.fact (n) if n <= 0 then return 1 else return n * P.fact(n-1) end end function P.ncr(n,r) return P.fact(n)/(P.fact(r)*P.fact(n-r)) end combi = { fact = fact, ncr = ncr, } \stopluacode ****** Your table is actually Pascal’d triangle. Using the above function, I was able to draw Pascal’s triangles. Hans helped me to complete it. I couldn’t wikify it at that time because I don’t know how to. I’ll do it soon. Here is the whole code for Pascal’s triangle in two different ways using Lua, Metafun and ConTeXt. You may enhance the code. \startbuffer[pt1] numeric n,r,s,u,dx,dy,tt; u := 1.8cm; path p, q; pair A,B,start,now; A := dir(210)*u; B := dir(-30)*u; dy := sind(30)*u; dx := 2*cosd(30)*u; for n=0 upto 4: start := n*dir(210)*u; for r=0 upto n: s := n-r; tt := lua("mp.print(P.ncr(" & decimal n & "," & decimal r & " ))"); now := start+r*right*dx; dotlabel.top(textext("$\displaystyle {" & decimal n & "\choose" & decimal r & "} = "& decimal tt & "$"),now); draw (now+A) -- now -- (now+B); endfor; endfor; \stopbuffer \startbuffer[pt2] numeric n,r,s,u,dx,dy,tt; u := 1cm; path p, q; pair A,B,start,now; A := dir(210)*u; B := dir(-30)*u; dy := sind(30)*u; dx := 2*cosd(30)*u; for n=0 upto 8: start := n*dir(210)*u; for r=0 upto n: s := n-r; tt := lua("mp.print(P.ncr(" & decimal n & "," & decimal r & " ))"); now := start+r*right*dx; label(textext("$" & decimal tt & "$"),now); endfor; endfor; \stopbuffer \startluacode P={} combi = P function P.fact (n) if n <= 0 then return 1 else return n * P.fact(n-1) end end function P.ncr(n,r) return P.fact(n)/(P.fact(r)*P.fact(n-r)) end combi = { fact = fact, ncr = ncr, } \stopluacode \starttext \processMPbuffer[pt1] \blank[big] \processMPbuffer[pt2] \stoptext I hope that it helps. Best regards, Dalyoung

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Pre-registration for 14th ConTeXt Meeting, September 6–12, 2020
by Jano Kula 20 Jul '20

20 Jul '20

Dear ConTeXt users! The 14th ConTeXt Meeting <https://meeting.contextgarden.net/2020/> in the Czech Republic is in preparation as originally planned. As nobody is able to predict the situation in September, we have started pre-registration only and will discuss conditions at the end of July via the mailing list of pre-registered participants. We will take into account up-to-date travel restrictions and health risks and make the final decision on July 31, 2020, based also on the number of pre-registrations. Till then no payment is wanted. All pre-registered participants qualify for early bird discount to be paid during the first week of August. Pre-registration doesn't bind you to pay or attend the meeting. The ConTeXt Group board has discussed other options (on-line meeting, postponing the meeting), but these are unlikely to happen, in case the meeting is cancelled. *14th ConTeXt Meeting* *September 6–12, 2020, Sibřina, Czech Republic* For the second time we will held the meeting at the friendly farm U Škodů, at the eastern border of Prague. See the gallery from 2018 <http://kostverlorenvaart.nl/context2018/> by Frans Goddijn. Topics will cover usage and development of LuaMetaTeX, ConTeXt, and everything related. Each meeting is source of inspiration for everybody, from beginner to expert. Friendly company is always looking for meeting new participants, users of LuaTeX, LuaMetaTeX, ConTeXt, Metapost, etc. There is a special discount for those, who attend the meeting for the first time and for students. Also ConTeXt Group members are qualified for the discount, so consider joining the group. For more details and pre-registration visit the 14th ConTeXt Meeting <https://meeting.contextgarden.net/2020/> page. Hope to see you in September, Jano on behalf of the ConTeXt Group <https://group.contextgarden.net>

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rpi
by Hans Hagen 20 Jul '20

20 Jul '20

Hi, For those interested in tiny machines and tex, processing the luametate xmanual gives this: % 20200720 : 258 pages % % mingw : 10.6 (sometimes less) % rpi 32 : 32.3 % rpi 64 : 26.0 (overclocked) % amd 10 fitlet : 28.2 (the 10.6 is on an 8+ year old intel laptop cpu so i guess that on a modern machine or desktop we're talking half of that) 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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french translation of ConTeXt interface - progress (v3)
by Garulfo 20 Jul '20

20 Jul '20

Hi, a "early-alpha-version" of updated setup-fr.pdf https://wiki.contextgarden.net/File:setup-fr.pdf with the associated mult-def.lua. https://wiki.contextgarden.net/File:20_output_mult-def_garulfo.zip Any feedback will be welcome. To developers : what priorities, in terms of categories, would you advise for the translation ? %----------------------------- Progress: TYPE TOTAL DONE commands 3962 943 24% constants 841 708 84% elements 26 26 100% setupstrings 135 57 42% = 100% other are { ( |... variables 1329 632 48% 6293 2366 38% CATEGORY TOTAL DONE alignment 163 92 56% attribute 23 2 9% background 158 71 45% bibliography 148 20 14% buffer 30 16 53% catcode 22 4 18% characters 59 0% colors 108 32 30% conditional 59 0% counter 311 72 23% float 1 0% fonts 453 224 49% graphics 247 88 36% language 223 73 33% layout 173 79 46% lua 42 1 2% mathematics 369 42 11% nan 650 572 88% None 1269 118 9% pdf 228 99 43% references 80 42 53% rules 85 45 53% structure 892 567 64% symbols 110 19 17% system 3 0% tables 103 32 31% verbatim 22 17 77% whitespace 107 30 28% xml 155 9 6% 6293 2366 38%

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Re: [NTG-context] french translation of ConTeXt interface - progress (v3)
by Garulfo 19 Jul '20

19 Jul '20

@Pablo Rodriguez Thanks, and indeed behavior changes with the following commands: \configurertête[section,chapitre,sujet] [couleur=couleurtitre, indenterensuite=oui] \configurerflottant[indenterensuite=oui] \configurerformule[indenterensuite=oui]

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Code lua in a table
by Fabrice Couvreur 18 Jul '20

18 Jul '20

Hello, I want to display the values of Pascal's triangle in a table. Unfortunately my knowledge of Lua is not sufficient to run this code. Thank you. Fabrice \starttext \startluacode function Binom(n,k) if k > n then return 0 elseif (n == 0 or k == 0) then return 1 else return (n*Binom(n-1,k-1))/k end context(Binom(n,k)) end context.startxtable({"align={middle,lohi}, width=1.2cm,offset=0.8ex,bodyfont=9pt"}) context.startxrow({"background=color,backgroundcolor=green"}) for i = 0, 10 do for j = 0, i do context.startxcell() context(Binom(i,j)) context.stopxcell() end end context.stopxrow() \stopluacode \stoptext

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embolden font in LMTX
by Pablo Rodriguez 17 Jul '20

17 Jul '20

Dear list, I have the following sample: \definefontfamily [mainface] [rm] [TeX Gyre Pagella] [it={style:regular, features:{default, slanted}}, bi={style:regular, features:{default, boldened, slanted}}, bf={style:regular, features:{default, boldened}}] \setupbodyfont[mainface] \starttext \input{zapf}\\ {\it \input{zapf}}\\ {\bf \input{zapf}}\\ {\bi \input{zapf}}\\ \stoptext I’m afraid that LMTX (current latest 2020.07.13 23:53) cannot deal with the boldened feature. MkIV (from 2020.01.30 14:13) works just fine. Am I missing something or have I hit a bug? Many thanks for your help, Pablo -- http://www.ousia.tk

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Text around a figure
by Fabrice Couvreur 16 Jul '20

16 Jul '20

Hello, I always encounter difficulties with the placement of figures in such a way that the text envelops the figure. Thank you. Fabrice \useMPlibrary[dum] \definecolor[fondpaille][c=0,m=0,y=0.2,k=0] \starttext \startframedtext[width=max,background=color,backgroundcolor=fondpaille] \placefloat[][right,none]{} {\externalfigure[dummy]} \startitemize[n] \dorecurse{3}{\startitem \input ward \stopitem} \stopitemize \stopframedtext \stoptext

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how to with \margindata
by Hans van der Meer 15 Jul '20

15 Jul '20

Using the following: \margindata{some macro expansions} I know that \margindata is typeset at a later moment than its place in the code suggests. The problem is that macro expansions inside the {}'s are expanded twice. This interferes badly with the things I want to happen. Tracing what happens, I conclude that the result of the first expansion is lost and is not carried into the actual placement of the marginnote. The question this is: how to solve this problem? dr. Hans van der Meer

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Combining colors with matrices
by David Eric Cox 15 Jul '20

15 Jul '20

Can anyone direct me to either traditional ConTeXt math documentation on how to produce matrices or tell me how to show a variable in bold redin MathML? I am producing pdf files exclusively. Sent with [ProtonMail](https://protonmail.com) Secure Email.

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