Présentation de 165.jps

%% PhS

%% 


%% échelle et étendue de l'image

55 setxunit
-2.5 2.5  setxrange
-2.5 3 setyrange
/xgauche -6 def    %% c'est la limite gauche de l'image

/xdroite 6 def     %% c'est la limite droite de l'image

/ybasse  -4 def    %% c'est la limite basse de l'image

/yhaute  4 def     %% c'est la limite haute de l'image


10 4 point 

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%%  DANGER !! Il ne faut pas utiliser de variables

%%  DANGER !! qui commence par les lettres :

%%  DANGER !! xmin, xmax, ymin et ymax...

%%  DANGER !! Utiliser x_min, y_min...

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%% plages initiales pour les paramètres (peuvent être modifiées pour chaque fonctions tracées

/x_min -5 def
/x_max 5 def
/t_min -9 def
/t_max 9 def


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%% procédures

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%% définitions des couleurs

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/coul1 {120 255 div 70 255 div 9 255 div setrgbcolor} def



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%% tracés

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%% tracé des axes et du point Origine

1 setlinewidth
20 setfontsize
noir
continu
traceaxes
marks
tracerepere



2 setlinewidth
vert
continu

[-5 5 5 -5] (-) ligne
[-5 -5 5 5] (-) ligne


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%% texte

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setTimesItalic