{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 0 0 0 0 0 0 2 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 "" -1 256 "" 1 18 0 0 0 0 0 0 0 0 0 0 0 0 0 0 }{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 "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 }{PSTYLE "Maple Output" -1 12 1 {CSTYLE "" -1 -1 "Times" 1 12 0 0 0 1 2 2 2 2 2 2 1 1 1 1 }1 3 0 0 0 0 1 0 1 0 2 2 0 1 }} {SECT 0 {EXCHG {PARA 0 "" 0 "" {TEXT 256 65 "The first example in our \+ paper. Transform the root to the origin." }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 8 "restart;" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 27 "interface(rtablesize = 30);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#\"#5" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 20 "with(LinearAlgebra):" }}} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 24 "read`../polysolver.mpl`:" }} }{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 34 "lsys:=[x^2+2*x+y,x+1/8*y^2+ 1/2*y];" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%%lsysG7$,(*$)%\"xG\"\"#\" \"\"F+*&F*F+F)F+F+%\"yGF+,(F)F+*&#F+\"\")F+*$)F-F*F+F+F+*&#F+F*F+F-F+F +" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 40 "Same perturbation for the tw o variables." }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 42 "lsysnew:=ex pand(subs(\{x=x+a,y=y+a\},lsys));" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#> %(lsysnewG7$,.*$)%\"xG\"\"#\"\"\"F+*(F*F+F)F+%\"aGF+F+*$)F-F*F+F+*&F*F +F)F+F+*&\"\"$F+F-F+F+%\"yGF+,.F)F+*&#F2F*F+F-F+F+*&#F+\"\")F+*$)F3F*F +F+F+*&#F+\"\"%F+*&F3F+F-F+F+F+*&F8F+F.F+F+*&#F+F*F+F3F+F+" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 72 "M1:=Transpose(SubMatrix(prolongp(ls ysnew[1],[y,x],4)[1][1],6..15,1..6));" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%#M1G-%'RTABLEG6%\"*?%)z]\"-%'MATRIXG6#7(7,\"\"!F.F.F.\"\"\"F.F.,& *&\"\"#F/%\"aGF/F/F2F/F/,&*&\"\"$F/F3F/F/*$)F3F2F/F/7,F.F/F.F.F.F0F/F. F4F.7,F/F.F.F.F0F/F.F4F.F.7,F.F.F0F/F.F.F4F.F.F.7,F.F0F/F.F.F4F.F.F.F. 7,F0F/F.F.F4F.F.F.F.F.%'MatrixG" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 72 "M2:=Transpose(SubMatrix(prolongp(lsysnew[2],[y,x],4)[1][1],6.. 15,1..6));" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%#M2G-%'RTABLEG6%\"*)o$ p_\"-%'MATRIXG6#7(7,\"\"!F.F.F.F.F.#\"\"\"\"\")F0,&*&\"\"%!\"\"%\"aGF0 F0#F0\"\"#F0,&*&F/F0*$)F6F8F0F0F0*&#\"\"$F8F0F6F0F07,F.F.F.F/F.F0F2F.F 9F.7,F.F.F/F.F0F2F.F9F.F.7,F.F.F0F2F.F.F9F.F.F.7,F.F0F2F.F.F9F.F.F.F.7 ,F0F2F.F.F9F.F.F.F.F.%'MatrixG" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 23 "M:=Matrix([[M1],[M2]]);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>% \"MG-%'RTABLEG6%\"*odq_\"-%'MATRIXG6#7.7,\"\"!F.F.F.\"\"\"F.F.,&*&\"\" #F/%\"aGF/F/F2F/F/,&*&\"\"$F/F3F/F/*$)F3F2F/F/7,F.F/F.F.F.F0F/F.F4F.7, F/F.F.F.F0F/F.F4F.F.7,F.F.F0F/F.F.F4F.F.F.7,F.F0F/F.F.F4F.F.F.F.7,F0F/ F.F.F4F.F.F.F.F.7,F.F.F.F.F.F.#F/\"\")F/,&*&\"\"%!\"\"F3F/F/#F/F2F/,&* &F?F/F7F/F/*&#F6F2F/F3F/F/7,F.F.F.F?F.F/FAF.FFF.7,F.F.F?F.F/FAF.FFF.F. 7,F.F.F/FAF.F.FFF.F.F.7,F.F/FAF.F.FFF.F.F.F.7,F/FAF.F.FFF.F.F.F.F.%'Ma trixG" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 13 "Dimension(M);" }} {PARA 11 "" 1 "" {XPPMATH 20 "6$\"#7\"#5" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 72 "M:=GaussianElimination(SubMatrix(M,[3,2,10,8,1,7,9,4, 5,6,11,12],1..10));" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"MG-%'RTABLE G6%\"*c$fG:-%'MATRIXG6#7.7,\"\"\"\"\"!F/F/,&*&\"\"#F.%\"aGF.F.F2F.F.F/ ,&*&\"\"$F.F3F.F.*$)F3F2F.F.F/F/7,F/F.F/F/F/F0F.F/F4F/7,F/F/F.,&*&\"\" %!\"\"F3F.F.#F.F2F.F/F/,&*&#F.\"\")F.F7F.F.*&#F6F2F.F3F.F.F/F/F/7,F/F/ F/FBF/F.F;F/F@F/7,F/F/F/F/F.F/F/F0F.F47,F/F/F/F/F/,&*&F2F>F3F.F.F.F.,( *&#F6\"#kF.F7F.F.*&#F.\"#;F.F3F.F.#F.F=F.,(*&FBF.F7F.F.*&#F.F2F.F3F.F> F2F>,**&#F.\"#KF.*$)F3F6F.F.F.*&#\"\"(FQF.F7F.F.*&#F6F=F.F3F.F.F.F>,&* &F6F.F3F.F>F7F>7,F/F/F/F/F/F/FBF.F;F@7,F/F/F/F/F/F/F/,$**F=F.F3F2,(*& \"\"&F.F3F.F.F7F.\"\"*F.F.,&F3F.F2F.F>F>,$**F2F>F3F2,**&FdoF.F8F.F.*& \"#?F.F3F.F.\"#OF.FenF.F.FfoF>F>,$*,F6F.FCF>F3F6,*\"$W\"F.*&\"#%)F.F3F .F.*&\"#>F.F8F.F.FenF.F.FfoF>F>7,F/F/F/F/F/F/F/F/,$**FQF>,**&F6F.FfnF. F.*&\"#AF.F8F.F.*&\"#$)F.F3F.F.FapF.F.F3F6FboF>F>,$*,F6F.FNF>,**&F6F.F fnF.F.*&\"#SF.F8F.F.*&\"$h\"F.F3F.F.\"$k#F.F.F3F=FboF>F>7,F/F/F/F/F/F/ F/F/F/,$*,\"#FF.F2F>,&F3F.FdoF.F.F3F=FipF>F>7,F/F/F/F/F/F/F/F/F/F/F]r% 'MatrixG" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 38 "taylor(-4*a^2(5 *a+a^2+9)/(a+2),a=0,4);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+)%\"aG!\"# \"\"#\"\"\"\"\"$-%\"OG6#F'\"\"%" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 46 "taylor(-a^2(5*a^2+20*a+36+a^3)/(2*a+4),a=0,4);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+)%\"aG#!\"\"\"\"%\"\"##\"\"\"\"\")\"\"$-%\"OG6#F* F'" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 51 "taylor(-3*a^3(144+84* a+19*a^2+a^3)/(8*a+16),a=0,5);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+)% \"aG#!\"$\"#;\"\"$#F(\"#K\"\"%-%\"OG6#\"\"\"\"\"&" }}}{EXCHG {PARA 0 " > " 0 "" {MPLTEXT 1 0 60 "taylor(-a^3(22*a^2+3*a^3+83*a+144)/(16*a^2+8 0*a+144),a=0,5);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+)%\"aG#!\"\"\"$W \"\"\"$#\"\"&\"%'H\"\"\"%-%\"OG6#\"\"\"F*" }}}{EXCHG {PARA 0 "> " 0 " " {MPLTEXT 1 0 64 "taylor(-3*a^4(40*a^2+3*a^3+161*a+264)/(320*a^2+64*a +576),a=0,5);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+'%\"aG#!\"\"\"$#>\" \"%-%\"OG6#\"\"\"\"\"&" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 52 "t aylor(-27*a^4(a+5)/(6*a^2+44*a^2+166*a+288),a=0,6);" }}{PARA 11 "" 1 " " {XPPMATH 20 "6#+)%\"aG#!\"$\"#K\"\"%#\"#$)\"%O:\"\"&-%\"OG6#\"\"\"\" \"'" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 40 "NV:=NullSpace(SubMat rix(M, 1..7,1..10));" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%#NVG<%-%'RTA BLEG6%\"*!)RI_\"-%'MATRIXG6#7,7#,$**\"#K!\"\"%\"aG\"\"\",(*&\"$W$F4)F3 \"\"#F4F4*&\"$w&F4F3F4F4*&\"#hF4)F3\"\"$F4F4F4,&F3F4F9F4F2F47#,$**\"#; F2F3F4,**&\"#VF4F>F4F4*&\"$_\"F4F8F4F4*&\"$)GF4F3F4F4*&F?F4)F3\"\"%F4F 4F4F@F2F27#,$*(FDF2,&*&F?F4F8F4F4*&\"#SF4F3F4F4F4F3F9F27#,$**FNF2F3F4, (*&\"\"&F4F>F4F4*&\"#))F4F8F4F4*&FKF4F3F4F4F4F@F2F47#,&*&F?F4F3F4F2*$F 8F4F27#,$*(F1F2,**&F?F4FMF4F4*&FUF4F>F4F4*&\"$G\"F4F8F4F4*&\"$%QF4F3F4 F4F4F@F2F47#,&F\\oF2*&\"#7F4F3F4F27#\"\"!F[p7#F4&%'VectorG6#%'columnG- F'6%\"*gSI_\"-F+6#7,7#,$**F1F2F3F4,(*&\"#sF4F3F4F4\"$#>F4*&FNF4F8F4F2F 4F@F2F47#,$**FDF2F3F4,**&FjoF4F8F4F4*&FUF4F3F4F4\"#'*F4*&FNF4F>F4F4F4F @F2F27#,$*(FDF2,&\"\")F2*&FNF4F3F4F4F4F3F9F27#,$**FNF2F3F4,(*&F\\rF4F8 F4F4*&\"#[F4F3F4F4FfqF4F4F@F2F47#F27#,$*(F1F2,(*&FNF4F>F4F4*&F\\rF4F8F 4F2FdoF4F4F@F2F47#,&FNF2*&F9F4F3F4F2F[pF]pF[pF^p-F'6%\"*+TI_\"-F+6#7,7 #,$**F1F2F3F4,(*&FfqF4F8F4F4*&\"$O$F4F3F4F4FfoF4F4F@F2F47#,$**FDF2F3F4 ,(*&\"#!)F4F3F4F4F^qF4*&FDF4F8F4F4F4F@F2F27#,$*&F9F4F8F4F27#,$**FNF2F3 F4,&*&FdrF4F3F4F4F^qF4F4F@F2F47#,&*&F9F4F3F4F2F9F27#,$*(F1F2,(*&FDF4F8 F4F4*&\"#kF4F3F4F4\"$c#F4F4F@F2F47#!\")F]pF[pF[pF^p" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 54 "V:=SubMatrix(Matrix([NV[1],NV[2],NV[3]]), -6..-1,1..3);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"VG-%'RTABLEG6%\"* odU_\"-%'MATRIXG6#7(7%,&*&\"\"$\"\"\"%\"aGF1!\"\"*$)F2\"\"#F1F3F3,&*&F 6F1F2F1F3F6F37%,$*(\"#KF3,**&F0F1)F2\"\"%F1F1*&\"#SF1)F2F0F1F1*&\"$G\" F1F5F1F1*&\"$%QF1F2F1F1F1,&F2F1F6F1F3F1,$*(F " 0 "" {MPLTEXT 1 0 28 "B:=SubM atrix(V, 4..6, 1..3);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"BG-%'RTAB LEG6%\"*;`(=:-%'MATRIXG6#7%7%\"\"!F.\"\"\"7%F.F/F.7%F/F.F.%'MatrixG" } }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 49 "Mx:=SubMatrix(V, [1..2,4], 1..3).MatrixInverse(B);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%#MxG-%'RT ABLEG6%\"*S6q_\"-%'MATRIXG6#7%7%,&*&\"\"#\"\"\"%\"aGF1!\"\"F0F3F3,&*& \"\"$F1F2F1F3*$)F2F0F1F37%,$*(\"#KF3,(*&\"#;F1F8F1F1*&\"#kF1F2F1F1\"$c #F1F1,&F2F1F0F1F3F1,$*(F " 0 "" {MPLTEXT 1 0 47 "My:=SubMatrix(V,[2,3,5],1..3).MatrixInverse(B);" }} {PARA 11 "" 1 "" {XPPMATH 20 "6#>%#MyG-%'RTABLEG6%\"*O$*3`\"-%'MATRIXG 6#7%7%,$*(\"#K!\"\",(*&\"#;\"\"\")%\"aG\"\"#F5F5*&\"#kF5F7F5F5\"$c#F5F 5,&F7F5F8F5F1F5,$*(F0F1,(*&\"\"%F5)F7\"\"$F5F5*&\"\")F5F6F5F1\"$G\"F5F 5F " 0 "" {MPLTEXT 1 0 42 "taylor((16*a^2 +64*a+256)/(32*a+64),a=0,4);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+-%\"a G\"\"%\"\"!!\"\"\"\"\"#\"\"$F%\"\"##!\"$\"\")F*-%\"OG6#F(F%" }}} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 42 "taylor((4*a^3-8*a^2+128)/(32 *a+64),a=0,4);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+-%\"aG\"\"#\"\"!!\" \"\"\"\"#\"\"$\"\")F%#F'F+F*-%\"OG6#F(\"\"%" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 53 "taylor((3*a^4+40*a^3+128*a^2+384*a)/(32*a+64),a=0, 4);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#++%\"aG\"\"'\"\"\"!\"\"\"\"##\" \"*\"\")\"\"$-%\"OG6#F&\"\"%" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 46 "D ifferent perturbations for the two variables." }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 45 "lsysnewnew:=expand(subs(\{x=x+a,y=y+b\},lsys)); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%+lsysnewnewG7$,0*$)%\"xG\"\"#\" \"\"F+*(F*F+F)F+%\"aGF+F+*$)F-F*F+F+*&F*F+F)F+F+*&F*F+F-F+F+%\"yGF+%\" bGF+,0F)F+F-F+*&\"\")!\"\"F2F*F+*(\"\"%F7F2F+F3F+F+*&F6F7F3F*F+*&F*F7F 2F+F+*&F*F7F3F+F+" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 78 "M1new: =Transpose(SubMatrix(prolongp(lsysnewnew[1],[y,x],4)[1][1],6..15,1..6) );" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%&M1newG-%'RTABLEG6%\"*kpx\\\"- %'MATRIXG6#7(7,\"\"!F.F.F.\"\"\"F.F.,&*&\"\"#F/%\"aGF/F/F2F/F/,(*&F2F/ F3F/F/*$)F3F2F/F/%\"bGF/7,F.F/F.F.F.F0F/F.F4F.7,F/F.F.F.F0F/F.F4F.F.7, F.F.F0F/F.F.F4F.F.F.7,F.F0F/F.F.F4F.F.F.F.7,F0F/F.F.F4F.F.F.F.F.%'Matr ixG" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 78 "M2new:=Transpose(Sub Matrix(prolongp(lsysnewnew[2],[y,x],4)[1][1],6..15,1..6));" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%&M2newG-%'RTABLEG6%\"*C1y\\\"-%'MATRIXG6#7 (7,\"\"!F.F.F.F.F.#\"\"\"\"\")F0,&*&\"\"%!\"\"%\"bGF0F0#F0\"\"#F0,(*&F /F0*$)F6F8F0F0F0%\"aGF0*&F7F0F6F0F07,F.F.F.F/F.F0F2F.F9F.7,F.F.F/F.F0F 2F.F9F.F.7,F.F.F0F2F.F.F9F.F.F.7,F.F0F2F.F.F9F.F.F.F.7,F0F2F.F.F9F.F.F .F.F.%'MatrixG" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 32 "Mnew:=Mat rix([[M1new],[M2new]]);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%%MnewG-%' RTABLEG6%\"*c@y\\\"-%'MATRIXG6#7.7,\"\"!F.F.F.\"\"\"F.F.,&*&\"\"#F/%\" aGF/F/F2F/F/,(*&F2F/F3F/F/*$)F3F2F/F/%\"bGF/7,F.F/F.F.F.F0F/F.F4F.7,F/ F.F.F.F0F/F.F4F.F.7,F.F.F0F/F.F.F4F.F.F.7,F.F0F/F.F.F4F.F.F.F.7,F0F/F. 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