Re: Place a text over an arrow (Metafun)

[Otared Kavian <otared@gmail.com>]

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Hi Fabrice,

Do you know the step charts module in ConTeXt? I guess you can achieve what you want as in the example below (sorry, I did not took your example, I am just copying an example from my archives…).

%%%%%%%%%%
\usemodule[steps]
\starttext

Pour voir que la composée de deux fonctions $f$ et $u$, continues en un point $x_{*}$, est continue, on peut suivre le schéma suivant~:
\placefigure[middle,none][-]{}{
%\scale[,width=.35\textwidth]{
\startSTEPtable 
	\cell {$(f\circ u)(x_{*} + o(1)) = $} \text{définition de $f\circ u$}
	\cell {$f\left(u\left(x_{*} + o(1)\right)\right) = $} \text {$u$ est continue} 
	\cell {$f\left(u(x_{*}) + o(1)\right) = $} \text {$f$ est continue} 
	\cell {$f\left(u(x_{*})\right) + o(1) =$} \text {définition de $f\circ u$} 
	\cell {$(f\circ u)(x_{*}) + o(1)$.} 
\stopSTEPtable
%}
}
\stoptext
%%%%%%%%%%

Best regrads: Otared



> On 25 Jul 2016, at 10:36, Fabrice Couvreur <fabrice1.couvreur@gmail.com> wrote:
> 
> Hello,
> My way is not very elegant but I would do this:
> 
> Formula
>                    arrow text
> Formula
>                    arrow text
> Formula
>                    arrow text
> Formula
> 
> #########################################################
> \startuseMPgraphic{MyArrow}
> path p ;
> p:=(0,0){right}..(0.5cm,-0.6cm)..(0,-1.2cm){left} ;
> drawarrow p withpen pencircle scaled 1.5bp withcolor 0.625white ;
> \stopuseMPgraphic
> 
> \starttext
> 
> \showgrid
> 
> \math{A\times X=B}
>  
> \hfill On multiplie, à gauche, les deux membres de l'égalité par \math{A^{-1}}.
> 
> \hskip 5cm \relax \dontleavehmode\useMPgraphic{MyArrow}
> 
> \math{A^{-1}\times A\times X=A^{-1}\times B}
> 
> \hfill On utilise l'égalité \math{A^{-1}\times A=I}.
> 
> \hskip 5cm \relax \dontleavehmode \useMPgraphic{MyArrow}
> 
> \math{I\times X=A^{-1}\times B} 
> 
> \hfill On utilise l'égalité \math{X\times I=I\times X=X}.
> 
> \hskip 5cm \relax \dontleavehmode \useMPgraphic{MyArrow}
> 
> On a donc \math{X=A^{-1}\times B}   
>  
> \stoptext
> #########################################################
> 
> Thanks,
> Fabrice
> ___________________________________________________________________________________
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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
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