Hi Joseph, This is already the command I used, but I think the point of the too small arrow. Regards, Fabrice 2016-06-06 21:23 GMT+02:00 :

Hi Fabrice,

Have you tried \vec command ?

\startformula

\vec{AB} = \vec{AC} + \vec{CB}

\stopformula

Best regards

Joseph

*From:* Fabrice Couvreur *Sent:* ‎Saturday‎, ‎June‎ ‎4‎, ‎2016 ‎9‎:‎12‎ ‎AM *To:* ntg-context@ntg.nl

Hello everyone, When I used LaTeX, I was writing the vectors with esvect package. Is there an equivalent with Context ? Fabrice

https://www.ctan.org/tex-archive/macros/latex/contrib/esvect/

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Hi Hans, The console returns me : resolvers | trees | analyzing 'home:texmf' mtx-context | run 1: luatex --fmt="/home/fab/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en" --jobname="ntg45" --lua="/home/fab/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en.lui" --no-parse-first-line --c:currentrun=1 --c:fulljobname="./ntg45.tex" --c:input="./ntg45.tex" --c:kindofrun=1 --c:maxnofruns=9 "cont-yes.mkiv" This is LuaTeX, Version 0.95.0 (TeX Live 2016) system commands enabled. resolvers > trees > analyzing 'home:texmf' open source > 1 > 1 > /home/fab/context/tex/texmf-context/tex/context/base/mkiv/cont-yes.mkiv ConTeXt ver: 2016.06.05 16:26 MKIV beta fmt: 2016.6.6 int: english/english system > 'cont-new.mkiv' loaded open source > 2 > 2 > /home/fab/context/tex/texmf-context/tex/context/base/mkiv/cont-new.mkiv close source > 2 > 2 > /home/fab/context/tex/texmf-context/tex/context/base/mkiv/cont-new.mkiv system > files > jobname 'ntg45', input './ntg45', result 'ntg45' fonts > latin modern fonts are not preloaded languages > language 'en' is active open source > 2 > 3 > /home/fab/ntg45.tex metapost > library 'mat' is unknown or invalid fonts > preloading latin modern fonts (second stage) fonts > 'fallback modern-designsize rm 12pt' is loaded metapost > initializing instance 'metafun' using format 'metafun' metapost > loading 'metafun' as '/home/fab/context/tex/texmf-context/metapost/context/base/mpiv/metafun.mpiv' using method 'default' metapost > initializing number mode 'scaled' metapost > error:

...

math_stacker_draw ! Isolated expression. <to be read again> ( <*> math_stacker_draw( math_stacker_leftarrow_shape) ; ; ! Extra tokens will be flushed. <to be read again> ( <*> math_stacker_draw( math_stacker_leftarrow_shape) ; ;

[1] no-error metapost > error:

...

math_stacker_draw ! Isolated expression. <to be read again> ( <*> math_stacker_draw( math_stacker_leftarrow_shape) ; ; ! Extra tokens will be flushed. <to be read again> ( <*> math_stacker_draw( math_stacker_leftarrow_shape) ; ;

[1] no-error metapost > error:

...

math_stacker_draw ! Isolated expression. <to be read again> ( <*> math_stacker_draw( math_stacker_rightarrow_shape) ; ; ! Extra tokens will be flushed. <to be read again> ( <*> math_stacker_draw( math_stacker_rightarrow_shape) ; ;

[1] no-error metapost > error:

...

math_stacker_draw ! Isolated expression. <to be read again> ( <*> math_stacker_draw( math_stacker_rightarrow_shape) ; ; ! Extra tokens will be flushed. <to be read again> ( <*> math_stacker_draw( math_stacker_rightarrow_shape) ; ;

[1] no-error backend > xmp > using file '/home/fab/context/tex/texmf-context/tex/context/base/mkiv/lpdf-pdx.xml' pages > flushing realpage 1, userpage 1 close source > 2 > 3 > /home/fab/ntg45.tex close source > 1 > 3 > /home/fab/context/tex/texmf-context/tex/context/base/mkiv/cont-yes.mkiv mkiv lua stats > used config file: selfautoparent:/texmf/web2c/texmfcnf.lua mkiv lua stats > used cache path: /home/fab/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e mkiv lua stats > resource resolver: loadtime 0.032 seconds, 1 scans with scantime 0.021 seconds, 0 shared scans, 22 found files, scanned paths: /home/fab/texmf mkiv lua stats > stored bytecode data: 390 modules (0.281 sec), 82 tables (0.011 sec), 472 chunks (0.292 sec) mkiv lua stats > traced context: maxstack: 1182, freed: 2, unreachable: 1180 mkiv lua stats > cleaned up reserved nodes: 48 nodes, 9 lists of 446 mkiv lua stats > node memory usage: 139 glue, 2 penalty, 180 attribute, 38 glue_spec, 34 attribute_list, 2 temp, 2 user_defined mkiv lua stats > node list callback tasks: 6 unique task lists, 6 instances (re)created, 88 calls mkiv lua stats > used backend: pdf (backend for directly generating pdf output) mkiv lua stats > jobdata time: 0.001 seconds saving, 0.000 seconds loading mkiv lua stats > callbacks: 246 direct, 303 indirect, 549 total mkiv lua stats > randomizer: resumed with value 0.28739196541132 mkiv lua stats > positions: 8 collected, 8 regulars, 0 regions, 0 unresolved regions mkiv lua stats > loaded patterns: en::2, load time: 0.000 mkiv lua stats > result saved in file: ntg45.pdf, compresslevel 3, objectcompresslevel 3 mkiv lua stats > loaded fonts: 2 files: latinmodern-math.otf, lmroman12-regular.otf mkiv lua stats > font engine: otf 3.022, afm 1.512, tfm 1.000, 4 instances, load time 0.149 seconds mkiv lua stats > used platform: linux-64, type: unix, binary subtree: texmf-linux-64 mkiv lua stats > luatex banner: this is luatex, version 0.95.0 (tex live 2016) mkiv lua stats > control sequences: 43841 of 65536 + 100000 mkiv lua stats > lua properties: engine: lua, used memory: 59 MB (ctx: 58 MB), hash type: lua, hash chars: min(64,40), symbol mask: utf (τεχ) mkiv lua stats > runtime: 0.551 seconds, 1 processed pages, 1 shipped pages, 1.815 pages/second system | total runtime: 0.784 seconds Thanks, Fabrice 2016-06-06 22:50 GMT+02:00 Hans Hagen :

On 6/6/2016 9:39 PM, Fabrice Couvreur wrote:

...

Hi Joseph, This is already the command I used, but I think the point of the too small arrow.

If you really want to go over the top:

\useMPlibrary[mat]

% will be in meta-imp-mat.mkiv

\startMPextensions vardef math_stacker_arrow_shape = image ( drawarrow (OverlayWidth,OverlayOffset) -- (0,OverlayOffset) withcolor OverlayLineColor ; setbounds currentpicture to boundingbox currentpicture bottomenlarged (OverlayOffset/2) topenlarged (OverlayOffset/2) ; ) enddef ; vardef math_stacker_leftarrow_shape = math_stacker_arrow_shape enddef ; vardef math_stacker_rightarrow_shape = math_stacker_arrow_shape rotated 180 enddef ; \stopMPextensions

\startuniqueMPgraphic{math:stacker:\number"2190} math_stacker_draw(math_stacker_leftarrow_shape) ; \stopuniqueMPgraphic

\startuniqueMPgraphic{math:stacker:\number"2192} math_stacker_draw(math_stacker_rightarrow_shape) ; \stopuniqueMPgraphic

% so far

\setupmathstackers [both] % vfenced] [color=darkred, alternative=mp]

\setupmathstackers [top] [color=darkred, alternative=mp]

\setupmathstackers [bottom] [color=darkred, alternative=mp]

\starttext

$\overbracket {a+b+c+d} \quad \underbracket {a+b+c+d} \quad \doublebracket{a+b+c+d}$ \blank $\overparent {a+b+c+d} \quad \underparent {a+b+c+d} \quad \doubleparent {a+b+c+d}$ \blank $\overbrace {a+b+c+d} \quad \underbrace {a+b+c+d} \quad \doublebrace {a+b+c+d}$ \blank $\overbar {a+b+c+d} \quad \underbar {a+b+c+d} \quad \doublebar {a+b+c+d}$ \blank

$\overleftarrow {a+b+c+d} \quad \overrightarrow {a+b+c+d} $ \blank $\underleftarrow {a+b+c+d} \quad \underrightarrow {a+b+c+d} $ \blank

\stoptext

----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

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Hi Wolfgang, what directory I put this file knowing that I installed the standalone version in /home/fab/context Fabrice 2016-06-07 23:04 GMT+02:00 Wolfgang Schuster :

Hans Hagen 6. Juni 2016 um 22:50

If you really want to go over the top:

\useMPlibrary[mat]

The file "meta-imp-mis.mkiv" is missing which results in a error about "math_stacker_draw" being undefined.

Wolfgang

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It's ok. Thanks, Fabrice 2016-06-15 14:58 GMT+02:00 Wolfgang Schuster :

Fabrice Couvreur 15. Juni 2016 um 14:48 Hi Wolfgang, what directory I put this file knowing that I installed the standalone version in /home/fab/context Fabrice

The commend was meant for Hans, all *you* have to do is update your TeX installation, afterwards you can try the following example:

\useMPlibrary[mat]

\setupmathstackers [both] [color=darkred, alternative=mp]

\setupmathstackers [top] [color=darkred, alternative=mp]

\setupmathstackers [bottom] [color=darkred, alternative=mp]

\starttext

$\overbracket {a+b+c+d} \quad \underbracket {a+b+c+d} \quad \doublebracket{a+b+c+d}$ \blank $\overparent {a+b+c+d} \quad \underparent {a+b+c+d} \quad \doubleparent {a+b+c+d}$ \blank $\overbrace {a+b+c+d} \quad \underbrace {a+b+c+d} \quad \doublebrace {a+b+c+d}$ \blank $\overbar {a+b+c+d} \quad \underbar {a+b+c+d} \quad \doublebar {a+b+c+d}$ \blank

$\overleftarrow {a+b+c+d} \quad \overrightarrow {a+b+c+d} $ \blank $\underleftarrow {a+b+c+d} \quad \underrightarrow {a+b+c+d} $ \blank

\stoptext

Wolfgang

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