avec la commande graphe_suite(sqrt(x+2),x=[-7/4,-2,2],4)
dans x=[-7/4,-2,2] à quoi servent -2 et 2 ? Je pensais que c'était le réglage de la fenêtre graphique avec xmin et xmax, mais apparement il n'en est rien.
Un petit chipotage, dans l'aide il est écrit :
Permet de visualiser les p premiers termes de la suite u(0)=a,u(n)=f(u(n-1))
graphe_suite(Expr(Var),Var=[u0,xm,xM],Intg(p))
c'est plutôt Var=[a,xm,xM] qu'il faudrait écrire.
Sinon la session suivante :
Code : Tout sélectionner
// xcas version=0.8.2 fontsize=18 font=0 xcas_mode=0
// fltk 7Fl_Tile 13 -831 883 367 18 0
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// fltk N4xcas13Tableur_GroupE 13 -831 883 366 18 0
1 1 1 0 spreadsheet[[[n,n,[0,[-1.99849,12.0,-3.0,3.0],8,[0.020646740413,0.0062893081761],1,1,[1],[[22,22,22,22,22,22,22,22,22,22,22,22,22,22,22],[100,206,229]]]],[u_n,u_n,2],[scatterplot([[0,2],[1,-2],[2,10/9],[3,6/25],[4,82/113],[5,206/401],[6,986/1593],[7,3414/5993],[8,13730/23137],[9,51358/88225],[10,198826/338409]]),pnt(pnt[2*i,0,""]),pnt(pnt[1-2*i,0,""]),pnt(pnt[(18+10*i)/9,0,""]),pnt(pnt[(75+6*i)/25,0,""]),pnt(pnt[(452+82*i)/113,0,""]),pnt(pnt[(2005+206*i)/401,0,""]),pnt(pnt[(9558+986*i)/1593,0,""]),pnt(pnt[(41951+3414*i)/5993,0,""]),pnt(pnt[(185096+13730*i)/23137,0,""]),pnt(pnt[(794025+51358*i)/88225,0,""]),pnt(pnt[(3384090+198826*i)/338409,0,""]),2]],[[0,0,2],[2,2,2],[=round(evalf(B1),4),2.0,2]],[[=A1+1,1,2],[=(3*B1-4)/(2*B1-5),-2,2],[=round(evalf(B2),4),-2.0,2]],[[=A2+1,2,2],[=(3*B2-4)/(2*B2-5),10/9,2],[=round(evalf(B3),4),1.1111,2]],[[=A3+1,3,2],[=(3*B3-4)/(2*B3-5),6/25,2],[=round(evalf(B4),4),0.24,2]],[[=A4+1,4,2],[=(3*B4-4)/(2*B4-5),82/113,2],[=round(evalf(B5),4),0.7257,2]],[[=A5+1,5,2],[=(3*B5-4)/(2*B5-5),206/401,2],[=round(evalf(B6),4),0.5137,2]],[[=A6+1,6,2],[=(3*B6-4)/(2*B6-5),986/1593,2],[=round(evalf(B7),4),0.619,2]],[[=A7+1,7,2],[=(3*B7-4)/(2*B7-5),3414/5993,2],[=round(evalf(B8),4),0.5697,2]],[[=A8+1,8,2],[=(3*B8-4)/(2*B8-5),13730/23137,2],[=round(evalf(B9),4),0.5934,2]],[[=A9+1,9,2],[=(3*B9-4)/(2*B9-5),51358/88225,2],[=round(evalf(B10),4),0.5821,2]],[[=A10+1,10,2],[=(3*B10-4)/(2*B10-5),198826/338409,2],[=round(evalf(B11),4),0.5875,2]],[[=A11+1,11,2],[=(3*B11-4)/(2*B11-5),757158/1294393,2],[=round(evalf(B12),4),0.585,2]],[[=A12+1,12,2],[=(3*B12-4)/(2*B12-5),2906098/4957649,2],[=round(evalf(B13),4),0.5862,2]],[[=A13+1,13,2],[=(3*B13-4)/(2*B13-5),11112302/18976049,2],[=round(evalf(B14),4),0.5856,2]]]
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// fltk N4xcas10Log_OutputE 13 -465 883 1 18 0
]
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// fltk 7Fl_Tile 13 -462 883 233 18 0
[
// fltk N4xcas19Multiline_Input_tabE 13 -462 883 25 18 0
graphe_suite((3*x-4)/(2*x-5),2,display=bleu+epaisseur_ligne_2)
,
// fltk N4xcas10Log_OutputE 13 -437 883 21 18 0
,
// fltk 7Fl_Tile 13 -416 883 187 18 0
[
// fltk N4xcas7Graph2dE 13 -416 787 187 18 0
-5.4934,5.4934,-3.4046,3.9359,[],-2.497,2.497,1,0,0,0,1,1,1,0,1,2.5,0,0,65,[],24,18,256,0,100,0,0,1,0.03
,
// fltk 8Fl_Group 800 -416 96 187 18 0
[
// fltk N4xcas14Mouse_PositionE 800 -416 96 199 18 0
[]
,
// fltk 8Fl_Group 800 -217 96 15 18 0
[
// fltk 9Fl_Button 800 -217 32 3 18 0
[]
,
// fltk 9Fl_Button 832 -217 32 3 18 0
[]
,
// fltk 9Fl_Button 864 -217 32 3 18 0
[]
,
// fltk 9Fl_Button 800 -214 32 3 18 0
[]
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// fltk 9Fl_Button 832 -214 32 3 18 0
[]
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// fltk 9Fl_Button 864 -214 32 3 18 0
[]
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// fltk 9Fl_Button 800 -211 32 3 18 0
[]
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// fltk 9Fl_Button 832 -211 32 3 18 0
[]
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// fltk 9Fl_Button 864 -211 32 3 18 0
[]
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// fltk 9Fl_Button 800 -208 32 3 18 0
[]
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// fltk 9Fl_Button 832 -208 32 3 18 0
[]
,
// fltk 9Fl_Button 864 -208 32 3 18 0
[]
,
// fltk 9Fl_Button 800 -205 32 3 18 0
[]
,
// fltk 11Fl_Menu_Bar 832 -205 64 3 18 0
[]
]
,
// fltk 8Fl_Group 800 -202 96 -27 18 0
[
]
]
]
]
,
// fltk 7Fl_Tile 13 -227 883 29 18 0
[
// fltk N4xcas19Multiline_Input_tabE 13 -227 883 28 18 0
,
// fltk N4xcas10Log_OutputE 13 -199 883 1 18 0
]
,
// fltk 7Fl_Tile 13 -196 883 375 18 0
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// fltk N4xcas13Tableur_GroupE 13 -196 883 360 18 0
1 1 1 0 spreadsheet[[[n,n,[0,[-0.5,11.0,-0.5,2.5],8,[36.2,38.9],1,1,[1],[[22,22,22,22,22,22,22,22,22,22,22,22],[100,256,148]]]],[v_n,v_n,2],[=scatterplot((A1):(A11),(B1):(B11)),[pnt(pnt[(-7*(i))/4,0,""]),pnt(pnt[(2+i)/2,0,""]),pnt(pnt[2+((i)*sqrt(10))/2,0,""]),pnt(pnt[3+(i)*sqrt((sqrt(10))/2+2),0,""]),pnt(pnt[4+(i)*sqrt(sqrt((sqrt(10))/2+2)+2),0,""]),pnt(pnt[5+(i)*sqrt(sqrt(sqrt((sqrt(10))/2+2)+2)+2),0,""]),pnt(pnt[6+(i)*sqrt(sqrt(sqrt(sqrt((sqrt(10))/2+2)+2)+2)+2),0,""]),pnt(pnt[7+(i)*sqrt(sqrt(sqrt(sqrt(sqrt((sqrt(10))/2+2)+2)+2)+2)+2),0,""]),pnt(pnt[8+(i)*sqrt(sqrt(sqrt(sqrt(sqrt(sqrt((sqrt(10))/2+2)+2)+2)+2)+2)+2),0,""]),pnt(pnt[9+(i)*sqrt(sqrt(sqrt(sqrt(sqrt(sqrt(sqrt((sqrt(10))/2+2)+2)+2)+2)+2)+2)+2),0,""]),pnt(pnt[10+(i)*sqrt(sqrt(sqrt(sqrt(sqrt(sqrt(sqrt(sqrt((sqrt(10))/2+2)+2)+2)+2)+2)+2)+2)+2),0,""])],2]],[[0,0,2],[(-7)/4,(-7)/4,2],[=round(evalf(B1),4),-1.75,2]],[[=A1+1,1,2],[=sqrt(B1+2),1/2,2],[=round(evalf(B2),4),0.5,2]],[[=A2+1,2,2],[=sqrt(B2+2),(sqrt(10))/2,2],[=round(evalf(B3),4),1.5811,2]],[[=A3+1,3,2],[=sqrt(B3+2),sqrt((sqrt(10))/2+2),2],[=round(evalf(B4),4),1.8924,2]],[[=A4+1,4,2],[=sqrt(B4+2),sqrt(sqrt((sqrt(10))/2+2)+2),2],[=round(evalf(B5),4),1.9729,2]],[[=A5+1,5,2],[=sqrt(B5+2),sqrt(sqrt(sqrt((sqrt(10))/2+2)+2)+2),2],[=round(evalf(B6),4),1.9932,2]],[[=A6+1,6,2],[=sqrt(B6+2),sqrt(sqrt(sqrt(sqrt((sqrt(10))/2+2)+2)+2)+2),2],[=round(evalf(B7),4),1.9983,2]],[[=A7+1,7,2],[=sqrt(B7+2),sqrt(sqrt(sqrt(sqrt(sqrt((sqrt(10))/2+2)+2)+2)+2)+2),2],[=round(evalf(B8),4),1.9996,2]],[[=A8+1,8,2],[=sqrt(B8+2),sqrt(sqrt(sqrt(sqrt(sqrt(sqrt((sqrt(10))/2+2)+2)+2)+2)+2)+2),2],[=round(evalf(B9),4),1.9999,2]],[[=A9+1,9,2],[=sqrt(B9+2),sqrt(sqrt(sqrt(sqrt(sqrt(sqrt(sqrt((sqrt(10))/2+2)+2)+2)+2)+2)+2)+2),2],[=round(evalf(B10),4),2.0,2]],[[=A10+1,10,2],[=sqrt(B10+2),sqrt(sqrt(sqrt(sqrt(sqrt(sqrt(sqrt(sqrt((sqrt(10))/2+2)+2)+2)+2)+2)+2)+2)+2),2],[=round(evalf(B11),4),2.0,2]]]
,
// fltk N4xcas10Log_OutputE 13 164 883 15 18 0
]
,
// fltk 7Fl_Tile 13 181 883 395 18 0
[
// fltk N4xcas19Multiline_Input_tabE 13 181 883 117 18 0
graphe_suite(sqrt(x+2),-7/4,5,display=bleu+epaisseur_ligne_2)
,
// fltk N4xcas10Log_OutputE 13 298 883 149 18 0
,
// fltk N4xcas10Log_OutputE 13 447 883 29 18 0
Impossible de lancer un thread
]
,
// fltk 7Fl_Tile 13 578 883 29 18 0
[
// fltk N4xcas19Multiline_Input_tabE 13 578 883 28 18 0
,
// fltk N4xcas10Log_OutputE 13 606 883 1 18 0
]
// context 386 giac archive
7 0 5 8 0 0 'cas_setup' 7 0 11 0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
7 0 2 1 =Û|ßÙ×½;
1 <Ò¯žçV
0 12 0
7 0 4 0 1 0
0 50 0
0 0 0
0 25 0
0 0 0
0 1 0
0 1 0
8 0 0 'xyztrange' 7 0 16 1 À$