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+%%
+%% Ein Beispiel der DANTE-Edition
+%%
+%%
+%% Copyright (C) 2010 Herbert Voss
+%%
+%% It may be distributed and/or modified under the conditions
+%% of the LaTeX Project Public License, either version 1.3
+%% of this license or (at your option) any later version.
+%%
+%% See http://www.latex-project.org/lppl.txt for details.
+%%
+%%
+%% ====
+% Show page(s) 1
+%%
+\documentclass[]{exaarticle}
+\pagestyle{empty}
+\setlength\textwidth{352.81416pt}
+\setlength\parindent{0pt}
+\StartShownPreambleCommands
+%
+\usepackage{pst-labo,pstricks-add,graphicx}
+\makeatletter
+\define@key[psset]{pst-labo}{CA}{\edef\psk@Dosage@ConcentrationAcide{#1}}
+\define@key[psset]{pst-labo}{CB}{\edef\psk@Dosage@ConcentrationBase{#1}}
+\define@key[psset]{pst-labo}{VA}{\edef\psk@Dosage@VolumeAcide{#1}}
+\define@key[psset]{pst-labo}{VB}{\edef\psk@Dosage@VolumeBase{#1}}
+\psset{CA=0.1,CB=0.1,VB=10,VA=10}
+\def\DosageABpH{\@ifnextchar[{\pst@DosageABpH}{\pst@DosageABpH[]}}%
+\def\pst@DosageABpH[#1]{{%
+ \psset{#1}%
+ \begin{pspicture}(15,14)%
+ \psgrid[style=gridstyle,gridlabels=0pt]%
+ \psaxes[arrowscale=2,ticksize=0 -5pt]{->}(15,14)
+ \uput[180](0,14){pH}%
+ \pstVerb{%
+ /pHmax
+ /CA \psk@Dosage@ConcentrationAcide\space def
+ /CB \psk@Dosage@ConcentrationBase\space def
+ /VB \psk@Dosage@VolumeBase\space def
+ /VA \psk@Dosage@VolumeAcide\space def
+ /KE 1e-14 def
+ KE VA 15 add mul CB 15 mul CA VA mul sub div
+ log neg def
+ /pHmin CA log neg def }%
+ \parametricplot[linewidth=1.5pt]{pHmin}{pHmax}{%
+ /H 10 t neg exp def
+ CA VA mul KE VA mul H div add H VA mul sub
+ H CB add KE H div sub div t }%
+ \end{pspicture}}}
+\makeatother
+\StopShownPreambleCommands
+\begin{document}
+\resizebox{0.75\linewidth}{!}{%
+\begin{pspicture}(\textwidth,14.5)
+\rput[l](0,7){\DosageABpH[CA=0.01,CB=0.01,VA=11.2]}
+\rput[l](0,7){\DosageABpH[CA=0.0001,CB=0.0001,VA=5]}
+\rput*[lt](0.3,14){\pstDosage[niveauReactifBurette=25,niveauLiquide1=30,%
+ aspectLiquide1=Champagne,glassType=becher,phmetre,unit=0.5]}
+\end{pspicture}}
+\end{document}