Présentation de 067.jps

%% PhS

%% 


%% échelle et étendue de l'image

60 setxunit
-1 6  setxrange
-2 3  setyrange


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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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%% procédures

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%% on donne ici x(t)

/xdet {
1 dict begin
	/t exch def
	t
end
	} def

%% on donne ici y(t)

/ydet {
1 dict begin
	/t exch def
	t dup mul dup 1 add div t abs sqrt mul 0.5 sub 1.5 mul t 0.1 mul add
end
	} def


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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
15 setfontsize
noir
continu
traceaxes
marks
tracerepere



1.5 setlinewidth
coul1

[0 2 1 2] (-[) ligne
[1 -1 2 -1] (]-[) ligne
[2 2 3 2] (]-[) ligne
[3 -1 4 -1] (-[) ligne
[4 2 5 2] (]-[) ligne

[0 2 1 1 2 -1.5 3 -1 4 0.7 5 0] points


1 setlinewidth
vert
pointilles
[1 -1 1 2] (-) ligne
[2 -1.5 2 2] (-) ligne
[3 -1 3 2] (-) ligne
[4 -1 4 2] (-) ligne
[5 0 5 2] (-) ligne


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%% texte

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setTimesItalic