{VERSION 6 0 "IBM INTEL NT" "6.0" } {USTYLETAB {CSTYLE "Maple Input" -1 0 "Courier" 0 1 255 0 0 1 0 1 0 0 1 0 0 0 0 1 }{CSTYLE "2D Math" -1 2 "Times" 0 1 236 0 76 0 0 0 2 0 0 0 0 0 0 1 }{CSTYLE "2D Comment" 2 18 "" 0 1 48 37 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "2D Output" 2 20 "" 0 1 0 0 255 1 0 0 0 0 0 0 0 0 0 1 } {CSTYLE "" 0 21 "" 0 1 0 0 0 1 0 0 0 0 2 0 0 0 0 1 }{CSTYLE "" -1 256 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 257 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 258 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 259 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 } {CSTYLE "" -1 260 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 261 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 262 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 263 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 264 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 } {CSTYLE "" -1 265 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 266 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 267 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 268 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 269 "" 1 18 0 0 0 0 0 1 0 0 0 0 0 0 0 1 } {CSTYLE "" -1 270 "" 1 24 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 271 "" 1 24 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 272 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 273 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 274 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 } {CSTYLE "" -1 275 "" 1 14 0 0 0 0 0 0 0 0 0 0 0 0 0 1 }{PSTYLE "Normal " -1 0 1 {CSTYLE "" -1 -1 "Times" 1 12 0 0 0 1 2 2 2 2 2 2 1 1 1 1 }1 1 0 0 0 0 1 0 1 0 2 2 0 1 }{PSTYLE "Heading 2" -1 4 1 {CSTYLE "" -1 -1 "Times" 1 14 0 0 0 1 2 1 2 2 2 2 1 1 1 1 }1 1 0 0 4 4 1 0 1 0 2 2 0 1 }{PSTYLE "Maple Output" -1 11 1 {CSTYLE "" -1 -1 "Times" 1 12 0 0 0 1 2 2 2 2 2 2 1 1 1 1 }3 3 0 0 0 0 1 0 1 0 2 2 0 1 }} {SECT 0 {EXCHG {PARA 4 "" 0 "" {TEXT 270 14 "Ejercicios de " }}{PARA 4 "" 0 "" {TEXT 271 22 "(8) Estabilidad lineal" }}{PARA 4 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT 269 50 "Ejercicio 08-27 (del EX AMEN ORDINARIO DE 19ENE12)" }}{PARA 4 "" 0 "" {TEXT -1 55 "\nDe entre \+ los m\351todos impl\355citos de 2 etapas de tablero" }}{PARA 0 "" 0 " " {TEXT -1 0 "" }}{PARA 4 "" 0 "" {TEXT 260 18 " 0 | " } {XPPEDIT 18 0 "alpha;" "6#%&alphaG" }{TEXT 262 9 " 0" }}{PARA 4 "" 0 "" {TEXT 261 18 " 1 | " }{XPPEDIT 18 0 "alpha;" "6 #%&alphaG" }{TEXT 263 9 " 0" }}{PARA 4 "" 0 "" {TEXT -1 14 " \+ ---------" }{TEXT 256 24 "------------------------" }}{PARA 4 "" 0 " " {TEXT 257 17 " | " }{XPPEDIT 18 0 "1/2;" "6#*&\"\"\"F$ \"\"#!\"\"" }{TEXT 258 10 " " }{XPPEDIT 18 0 "1/2;" "6#*&\"\" \"F$\"\"#!\"\"" }{TEXT 259 1 " " }}{PARA 4 "" 0 "" {TEXT -1 40 "se bus caran los que sean de mayor orden." }}{PARA 4 "" 0 "" {TEXT -1 1 " " } }{PARA 4 "" 0 "" {TEXT -1 40 "(hasta aqu\355 es Ejercicio del cap\355t ulo 7)" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 4 "" 0 "" {TEXT -1 73 "Calc\372lese la funci\363n de estabilidad de la familia general de lo s m\351todos " }}{PARA 4 "" 0 "" {TEXT -1 21 "del tablero y, para " } {XPPEDIT 18 0 "alpha;" "6#%&alphaG" }{TEXT -1 55 " = 2 , dib\372jese \+ el dominio de estabilidad y disc\372tase " }}{PARA 4 "" 0 "" {TEXT -1 28 "la A-estabilidad del m\351todo" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 8 "restart:" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 26 "interface(labeling=false):" }}}{EXCHG {PARA 0 "" 0 "" {MPLTEXT 0 21 37 "# desarrollo de la verdadera solucion" }}}{EXCHG {PARA 0 "> " 0 " " {MPLTEXT 1 0 14 "f0:=f(x,y(x)):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 44 "f1:=subs(diff(y(x),x)=f(x,y(x)),diff(f0,x)):" }}} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 44 "f2:=subs(diff(y(x),x)=f(x,y( x)),diff(f1,x)):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 44 "f3:=sub s(diff(y(x),x)=f(x,y(x)),diff(f2,x)):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 43 "f0:=subs(\{y(x)=y0,x=x0\},f0):f0:=expand(f0):" }}} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 43 "f1:=subs(\{y(x)=y0,x=x0\},f1 ):f1:=expand(f1):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 43 "f2:=su bs(\{y(x)=y0,x=x0\},f2):f2:=expand(f2):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 43 "f3:=subs(\{y(x)=y0,x=x0\},f3):f3:=expand(f3):" }}} {EXCHG {PARA 0 "" 0 "" {MPLTEXT 0 21 23 "# desarrollo del m\351todo" } }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 16 "c[1]:=0:c[2]:=1:" }}} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 48 "a[1,1]:=alpha:a[1,2]:=0:a[2, 1]:=alpha:a[2,2]:=0:" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 20 "b[1 ]:=1/2:b[2]:=1/2:" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 66 "k10:=u napply(f(x0+c[1]*h,y0+a[1,1]*h*kp10(h)+a[1,2]*h*kp20(h)),h):" }}} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 66 "k20:=unapply(f(x0+c[2]*h,y0+ a[2,1]*h*kp10(h)+a[2,2]*h*kp20(h)),h):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 32 "k100:=k10(0):k100:=expand(k100):" }}}{EXCHG {PARA 0 " > " 0 "" {MPLTEXT 1 0 32 "k200:=k20(0):k200:=expand(k200):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 33 "Fi0:=expand(b[1]*k100+b[2]*k200):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 12 "k11:=D(k10):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 12 "k21:=D(k20):" }}}{EXCHG {PARA 0 "> \+ " 0 "" {MPLTEXT 1 0 66 "k110:=subs(\{kp10(0)=k100,kp20(0)=k200\},k11(0 )):k110:=expand(k110):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 66 "k 210:=subs(\{kp10(0)=k100,kp20(0)=k200\},k21(0)):k210:=expand(k210):" } }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 33 "Fi1:=expand(b[1]*k110+b[2] *k210):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 12 "k12:=D(k11):" }} }{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 12 "k22:=D(k21):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 98 "k120:=subs(\{D(kp10)(0)=k110,D(kp20 )(0)=k210,kp10(0)=k100,kp20(0)=k200\},k12(0)):k120:=expand(k120):" }}} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 98 "k220:=subs(\{D(kp10)(0)=k110 ,D(kp20)(0)=k210,kp10(0)=k100,kp20(0)=k200\},k22(0)):k220:=expand(k220 ):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 33 "Fi2:=expand(b[1]*k120 +b[2]*k220):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 12 "k13:=D(k12) :" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 12 "k23:=D(k22):" }}} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 140 "k130:=subs(\{(D@@2)(kp10)(0 )=k120,(D@@2)(kp20)(0)=k220,D(kp10)(0)=k110,D(kp20)(0)=k210,kp10(0)=k1 00,kp20(0)=k200\},k13(0)):k130:=expand(k130):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 140 "k230:=subs(\{(D@@2)(kp10)(0)=k120,(D@@2)(kp20)( 0)=k220,D(kp10)(0)=k110,D(kp20)(0)=k210,kp10(0)=k100,kp20(0)=k200\},k2 3(0)):k230:=expand(k230):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 33 "Fi3:=expand(b[1]*k130+b[2]*k230):" }}}{EXCHG {PARA 0 "" 0 "" {MPLTEXT 0 21 24 "# consistencia y orden 1" }}}{EXCHG {PARA 0 "> " 0 " " {MPLTEXT 1 0 47 "cond1a:=coeff(Fi0,f(x0,y0))=coeff(f0,f(x0,y0));" }} {PARA 11 "" 1 "" {XPPMATH 20 "6#>%'cond1aG/\"\"\"F&" }}}{EXCHG {PARA 0 "" 0 "" {MPLTEXT 0 21 29 "# condiciones para el orden 2" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 65 "cond2a:=coeff(Fi1,D[1](f)(x0,y0))=c oeff((1/2)*f1,D[1](f)(x0,y0));" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%'c ond2aG/#\"\"\"\"\"#F&" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 97 "co nd2b:=coeff(coeff(Fi1,D[2](f)(x0,y0)),f(x0,y0))=coeff(coeff((1/2)*f1,D [2](f)(x0,y0)),f(x0,y0));" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%'cond2b G/%&alphaG#\"\"\"\"\"#" }}}{EXCHG {PARA 0 "" 0 "" {MPLTEXT 0 21 14 "or den 2 para " }{XPPEDIT 18 0 "alpha;" "6#%&alphaG" }{MPLTEXT 0 21 29 " = 1/2 (o sea, LOBATTO IIIb) " }}}{EXCHG {PARA 0 "" 0 "" {MPLTEXT 0 21 29 "# condiciones para el orden 3" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 92 "cond3a:=coeff(Fi2,D[1,1](f)(x0,y0))=coeff((1/3)*f2,D[ 1,1](f)(x0,y0));subs(alpha=1/2,cond3a);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%'cond3aG/#\"\"\"\"\"##F'\"\"$" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#/#\"\"\"\"\"##F%\"\"$" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 124 "cond3b:=coeff(coeff(Fi2,D[1,2](f)(x0,y0)),f(x0,y0))=coeff(coeff(( 1/3)*f2,D[1,2](f)(x0,y0)),f(x0,y0));subs(alpha=1/2,cond3b);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%'cond3bG/%&alphaG#\"\"#\"\"$" }}{PARA 11 " " 1 "" {XPPMATH 20 "6#/#\"\"\"\"\"##F&\"\"$" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 128 "cond3c:=coeff(coeff(Fi2,D[2,2](f)(x0,y0)),f(x0,y0 )^2)=coeff(coeff((1/3)*f2,D[2,2](f)(x0,y0)),f(x0,y0)^2);subs(alpha=1/2 ,cond3c);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%'cond3cG/*$)%&alphaG\" \"#\"\"\"#F*\"\"$" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#/#\"\"\"\"\"%#F% \"\"$" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 132 "cond3d:=coeff(coe ff(Fi2,D[2](f)(x0,y0)),D[1](f)(x0,y0))=coeff(coeff((1/3)*f2,D[2](f)(x0 ,y0)),D[1](f)(x0,y0));subs(alpha=1/2,cond3d);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%'cond3dG/\"\"!#\"\"\"\"\"$" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#/\"\"!#\"\"\"\"\"$" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 124 "cond3e:=coeff(coeff(Fi2,D[2](f)(x0,y0)^2),f(x0,y0))= coeff(coeff((1/3)*f2,D[2](f)(x0,y0)^2),f(x0,y0));subs(alpha=1/2,cond3e );" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%'cond3eG/,$*&\"\"#\"\"\")%&alp haGF(F)F)#F)\"\"$" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#/#\"\"\"\"\"##F% \"\"$" }}}{EXCHG {PARA 0 "" 0 "" {MPLTEXT 0 21 36 "no hay orden 3 para ningun valor de " }{XPPEDIT 18 0 "alpha;" "6#%&alphaG" }{MPLTEXT 0 21 2 " " }}}{EXCHG {PARA 0 "" 0 "" {MPLTEXT 0 21 24 "# funcion de est abilidad" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 19 "f:=(x,y)->lambd a*y;" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"fGf*6$%\"xG%\"yG6\"6$%)ope ratorG%&arrowGF)*&%'lambdaG\"\"\"9%F/F)F)F)" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 64 "ka1:=unapply(f(x0+c[1]*h,y0+a[1,1]*h*kp1(h)+a[1,2] *h*kp2(h)),h);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%$ka1Gf*6#%\"hG6\"6 $%)operatorG%&arrowGF(*&%'lambdaG\"\"\",&%#y0GF.*(%&alphaGF.9$F.-%$kp1 G6#F3F.F.F.F(F(F(" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 64 "ka2:=u napply(f(x0+c[2]*h,y0+a[2,1]*h*kp1(h)+a[2,2]*h*kp2(h)),h);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%$ka2Gf*6#%\"hG6\"6$%)operatorG%&arrowGF(*& %'lambdaG\"\"\",&%#y0GF.*(%&alphaGF.9$F.-%$kp1G6#F3F.F.F.F(F(F(" }}} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 99 "test:=solve(\{k1=subs(\{kp1( h)=k1,kp2(h)=k2\},ka1(h)),k2=subs(\{kp1(h)=k1,kp2(h)=k2\},ka2(h))\},\{ k1,k2\});" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%%testG<$/%#k1G,$*(%'lam bdaG\"\"\"%#y0GF+,&F+!\"\"*(F*F+%&alphaGF+%\"hGF+F+F.F./%#k2GF(" }}} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 36 "k1:=subs(test,k1);k2:=subs(t est,k2);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%#k1G,$*(%'lambdaG\"\"\"% #y0GF(,&F(!\"\"*(F'F(%&alphaGF(%\"hGF(F(F+F+" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%#k2G,$*(%'lambdaG\"\"\"%#y0GF(,&F(!\"\"*(F'F(%&alphaG F(%\"hGF(F(F+F+" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 35 "y1:=expa nd(y0+h*(b[1]*k1+b[2]*k2));" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%#y1G, &%#y0G\"\"\"**%\"hGF'%'lambdaGF'F&F',&F'!\"\"*(F*F'%&alphaGF'F)F'F'F,F ," }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 36 "y1:=collect(subs(lambd a=z/h,y1),y0);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%#y1G*&,&\"\"\"F'*& %\"zGF',&F'!\"\"*&F)F'%&alphaGF'F'F+F+F'%#y0GF'" }}}{EXCHG {PARA 0 "> \+ " 0 "" {MPLTEXT 1 0 41 "r:=unapply(collect(simplify(y1/y0),z),z);" }} {PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"rGf*6#%\"zG6\"6$%)operatorG%&arrow GF(*&,&\"\"\"!\"\"*&,&%&alphaGF.F.F/F.9$F.F.F.,&F.F/*&F3F.F2F.F.F/F(F( F(" }}}{EXCHG {PARA 0 "" 0 "" {MPLTEXT 0 21 22 "# A-estabilidad para \+ " }{XPPEDIT 18 0 "alpha;" "6#%&alphaG" }{MPLTEXT 0 21 10 " = 2 " }}}{EXCHG {PARA 4 "" 0 "" {TEXT 264 29 "En general, como hemos visto \+ " }}{PARA 4 "" 0 "" {TEXT 266 4 " " }{XPPEDIT 18 0 "r(z) = (1+(1-al pha)*z)/(1-alpha*z);" "6#/-%\"rG6#%\"zG*&,&\"\"\"F**&,&F*F*%&alphaG!\" \"F*F'F*F*F*,&F*F**&F-F*F'F*F.F." }{TEXT 265 3 " " }}{PARA 4 "" 0 " " {TEXT 268 9 "y, para " }{XPPEDIT 18 0 "alpha;" "6#%&alphaG" }{TEXT 267 6 " = 2 ," }}{PARA 4 "" 0 "" {TEXT 274 5 " " }{XPPEDIT 18 0 "r (z) = (1-z)/(1-2*z);" "6#/-%\"rG6#%\"zG*&,&\"\"\"F*F'!\"\"F*,&F*F**&\" \"#F*F'F*F+F+" }{TEXT 273 3 " " }{TEXT -1 0 "" }}{PARA 4 "" 0 "" {TEXT 272 39 " Pondremos que z=x+i y . " }}{PARA 4 "" 0 "" {TEXT -1 4 "Como" }}{PARA 4 "" 0 "" {TEXT -1 29 " 1 - z = 1 - x - i y" }}{PARA 4 "" 0 "" {TEXT -1 1 "y" }}{PARA 4 "" 0 "" {TEXT -1 39 " 1 - 2 z = 1 - 2 x - 2 i y , " }}{PARA 4 "" 0 "" {TEXT -1 8 "resulta " }}{PARA 4 "" 0 "" {TEXT -1 7 " | " } {XPPEDIT 18 0 "1-z;" "6#,&\"\"\"F$%\"zG!\"\"" }{TEXT -1 27 " | ^2 = (1 - x )^2 + y^2 " }}{PARA 4 "" 0 "" {TEXT -1 2 "y " }}{PARA 4 "" 0 " " {TEXT -1 50 " | 1 - 2 z | ^2 = (1 - 2 x )^2 + 4 y^2 " }} {PARA 4 "" 0 "" {TEXT -1 46 "por lo que la curva | r(z) |^2 = 1 se es cribe" }}{PARA 4 "" 0 "" {TEXT -1 56 " (1 - x )^2 + y^2 = (1 \+ - 2 x )^2 + 4 y^2 " }}{PARA 4 "" 0 "" {TEXT -1 5 "o sea" }} {PARA 4 "" 0 "" {TEXT -1 32 " 3 x^2 - 2 x + 3 y^2 = 0 " }} {PARA 4 "" 0 "" {TEXT -1 12 " x^2 - " }{XPPEDIT 18 0 "2/3;" "6#*& \"\"#\"\"\"\"\"$!\"\"" }{TEXT -1 14 " x + y^2 = 0 " }}{PARA 4 "" 0 " " {TEXT -1 11 "La curva es" }}{PARA 4 "" 0 "" {TEXT -1 12 " ( x - " }{XPPEDIT 18 0 "1/3;" "6#*&\"\"\"F$\"\"$!\"\"" }{TEXT -1 13 " )^2 + y^2 = " }{XPPEDIT 18 0 "1/9;" "6#*&\"\"\"F$\"\"*!\"\"" }{TEXT -1 3 " \+ " }}{PARA 4 "" 0 "" {TEXT -1 37 "o sea, una circunferencia de centro " }{XPPEDIT 18 0 "1/3;" "6#*&\"\"\"F$\"\"$!\"\"" }{TEXT -1 5 " = ( \+ " }{XPPEDIT 18 0 "1/3;" "6#*&\"\"\"F$\"\"$!\"\"" }{TEXT -1 18 " , 0 ) \+ y radio " }{XPPEDIT 18 0 "1/3;" "6#*&\"\"\"F$\"\"$!\"\"" }{TEXT -1 22 " que pasa por (0,0) " }}{PARA 4 "" 0 "" {TEXT -1 41 "Como z=-1= (-1,0) verifica | r(z) | =| " }{XPPEDIT 18 0 "2/3;" "6#*&\"\"#\"\"\" \"\"$!\"\"" }{TEXT -1 46 " | < 1 resulta que el dominio de estabilida d " }}{PARA 4 "" 0 "" {TEXT -1 91 "es el exterior de la circunferencia y que el dominio de estabilida contiene (sobradamente) " }}{PARA 4 " " 0 "" {TEXT -1 3 "al " }{TEXT 275 70 "semiplano de parte real negativ a; por lo tanto, el m\351todo es A-estable" }{TEXT -1 0 "" }}{PARA 0 " " 0 "" {GLPLOT2D 378 378 378 {PLOTDATA 2 "6+-%'POINTSG6$7$$!\"&!\"\"$! #6F)-%'SYMBOLG6#%&POINTG-F$6$7$F'$\"#6F)F,-F$6$7$$\"\"$\"\"!F3F,-F$6$7 $F8F*F,-%)POLYGONSG6$7U7$$\"\"#F:$F:F:7$$\"+,Z6#*>!\"*$\"+OBL`7!#57$$ \"+hJeo>FI$\"+t))*o[#FL7$$\"+'[w(H>FI$\"+FbC\"o$FL7$$\"+!o1j(=FI$\"+Tn `<[FL7$$\"+%*p,4=FI$\"+CD&y(eFL7$$\"+F'o*G0zi5FI$\"+%Gn- )**FL7$$\"+.[4s$*FLF\\q7$$\"+ao=E\")FL$\"+2D(G#)*FL7$$\"+e+$)4pFL$\"+j ^c5&*FL7$$\"+(32Au&FL$\"+E0F[!*FL7$$\"+a?tTYFL$\"+d#zKW)FL7$$\"+2,wDOF L$\"+JC80xFL7$$\"+FL$\"+9D&y(eFL7$$\"+&> LpB\"FL$\"+Kn`<[FL7$$\"*Q^B-(FL$\"+>bC\"o$FL7$$\"*(QoTJFL$\"+l))*o[#FL 7$$\")')H&)yFL$\"+IBL`7FL7$FE$!+:w1-T!#>7$$\")()H&)yFL$!+QBL`7FL7$$\"* *QoTJFL$!+t))*o[#FL7$$\"*T^B-(FL$!+FbC\"o$FL7$$\"+*>LpB\"FL$!+Sn`<[FL7 $$\"+a+$)4>FL$!+?D&y(eFL7$$\"+BPJ5FFL$!+c5ZXoFL7$$\"+8,wDOFL$!+PC80xFL 7$$\"+h?tTYFL$!+i#zKW)FL7$$\"+%42Au&FL$!+H0F[!*FL7$$\"+m+$)4pFL$!+m^c5 &*FL7$$\"+io=E\")FL$!+4D(G#)*FL7$$\"+7[4s$*FL$!+&Gn-)**FL7$$\"+?0zi5FI $!+%Gn-)**FL7$$\"+:8Q(=\"FI$!+2D(G#)*FL7$$\"+&*p,48FI$!+i^c5&*FL7$F[p$ !+C0F[!*FL7$Ffo$!+b#zKW)FL7$Fao$!+HC80xFL7$$\"+H'o*G