Présentation de 111.jps

%% PhS

%% fig_S_cours_ch03_equations_differentieles_03_v01.jps


40 setxunit
-1 7 setxrange
-1.5 5 setyrange
tracerepere
marks




%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%% definitions des couleurs

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

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



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%% procédures

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%




%% parametrage de la courbe

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


/ydet_1 {
1 dict begin
	/t exch def
	t 3 div dup dup mul add Exp 0.5 mul
end
	} def


/ydet_2 {
1 dict begin
	/t exch def
	t Sin 1.5 mul
	3 3 div dup dup mul add Exp 0.5 mul
	add
	3 Sin 1.5 mul
	neg add
end
	} def






%% tracé de la courbe intégrale

1 setlinewidth
rouge
continu
-0 3 settrange
{xdet} {ydet_1} courbeparam

3 6 settrange
{xdet} {ydet_2} courbeparam

orange
[3 -0.5 3 4] ligne
[6 -0.5 6 3.5] ligne





%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%% texte

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

setTimesItalic


noir
<latex>
O
</latex>
0 0 [1.5 dup] dltexlabel

<latex>
$\beta$
</latex>
3 -0.5 [1.5 dup] dctexlabel