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:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: ::::::::::::::::::::::::::::::::::::::::<:J\\;E_>L<;:E_ymy;:::::::::::BsZ>W=vY::::::::::::::::::::::::::::: ::t@W\\HKAsyvY:::XGW\\H;jUsyvY:::::::::::::::::::::::::::::::::::::::: ::::::::::::::tBW\\HKqryvY:::::::::::::::::JA;W\\h;xI::::::::::::::::: :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::bC :vY:::::::::::J\\CkdB:jysy^VLFC@:nTjy;::::::::::::C`>=Je;yA::::::::::Z ::xI::::::::::::::bMnCJA;W\\Hlysy:::::::::::::::::::::::vPt>W:RlvYxI:::::::::::::::::::::::i?nCjysy:ZqryvY::::::::::::::::: ::tBbMnGxIyA:vPJa:yay=::::::::::::::::::::::::::t@W\\H;:::::JqryvY:::: :::::::::::::::::::::::::::::::::::::::::::::::::::tBbMnGjy;:::::::::: :::::::W>nCt@ry::vPJa:yay=:::::::::::::::::::::::::::::::::::::::::::: :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: :::::::::::::::<:ry::::::::::::::ZZ@NbM:Zymy;:::::::::::::::::::::::i? nCjysy:ZqryvY:::::::::::::::::::XGi_ql^;yA:vPt>W:::::b]vYxI::::::::::::::::::::::::::::::::::::::::: ::::::::::::::roZql^;yA:::::::::::::::::vTjUSlZy=:jUcMnCjysy:::::::::: :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: :::::::::::::::::::::::::::::::::::::::::::::::::Z::xI:::::::::::::::W \\H;JqryvY:::::::::::::::::::::::jU;W:1:" }{TEXT -1 0 "" }}{PARA 259 "" 0 "" {TEXT 314 32 "CHAPITR E 8: UTILISATION DE MAPLE" }{TEXT 316 0 "" }{TEXT 317 1 "\n" }{TEXT 315 19 "EN ALGEBRE LINEAIRE" }}{PARA 19 "" 0 "" {TEXT -1 39 "\251 Appr endre Maple. Alain Le Stang. 2006" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }} {PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT 256 18 "FONCTION S DE BASE:" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "> " 0 " " {MPLTEXT 1 0 8 "restart;" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 92 "Les vecteurs et les matrices peuvent \352tre d\351finis comme des tableau x rectangulaires, par la " }}{PARA 0 "" 0 "" {TEXT -1 9 "fonction " } {TEXT 257 5 "array" }{TEXT -1 48 ", rencontr\351e dans le chapitre sur les tableaux :" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT -1 44 "Vecteur-ligne d'ordre 3 sans initialisation:" }}{PARA 0 " > " 0 "" {MPLTEXT 1 0 17 "A:=array(1..3); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"AG-%&arrayG6$;\"\"\"\"\"$7\"" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 45 "Vecteur-ligne d'ordre 3 avec initialisation: " }}} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 19 "B:=array([x,y,z]); " }} {PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"BG-%'vectorG6#7%%\"xG%\"yG%\"zG" } }}{EXCHG {PARA 0 "" 0 "" {TEXT -1 46 "Vecteur-colonne d'ordre 3 sans i nitialisation:" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 33 "U:=array( 1..3,1..1);print(U); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"UG-%&a rrayG6%;\"\"\"\"\"$;F)F)7\"" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matr ixG6#7%7#&%\"UG6$\"\"\"F+7#&F)6$\"\"#F+7#&F)6$\"\"$F+" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 46 "Vecteur-colonne d'ordre 3 avec initialisa tion:" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 25 "V:=array([[x],[y], [z]]); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"VG-%'matrixG6#7%7#%\"xG 7#%\"yG7#%\"zG" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT -1 45 "Matrice carr\351e d'ordre 2 sans initialisation:" }} }{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 29 "M:=array(1..2,1..2);print(M );" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"MG-%&arrayG6%;\"\"\"\"\"#F(7 \"" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7$7$&%\"MG6$\"\"\"F+ &F)6$F+\"\"#7$&F)6$F.F+&F)6$F.F." }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 45 "Matrice carr\351e d'ordre 2 avec initialisation:" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 24 "N:=array([[a,b],[c,d]]);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"NG-%'matrixG6#7$7$%\"aG%\"bG7$%\"cG%\"dG" }}} {PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT 259 43 "O p\351rations sur les vecteurs et les matrices" }{TEXT -1 20 " , avec l a fonction " }{TEXT 258 5 "evalm" }{TEXT -1 2 " :" }}{PARA 0 "" 0 "" {TEXT -1 57 "Somme de vecteurs ou de matrices de m\352me dimension ave c +" }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 12 "evalm(A+U); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7%7#,&&%\"AG6#\"\"\"F,&%\"UG6$F,F,F,7# ,&&F*6#\"\"#F,&F.6$F4F,F,7#,&&F*6#\"\"$F,&F.6$F;F,F," }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 75 "Multiplication de vecteurs ou de matrices de di mensions compatibles avec &*" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 15 "evalm(M &* N); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7 $7$,&*&&%\"MG6$\"\"\"F-F-%\"aGF-F-*&&F+6$F-\"\"#F-%\"cGF-F-,&*&F*F-%\" bGF-F-*&F0F-%\"dGF-F-7$,&*&&F+6$F2F-F-F.F-F-*&&F+6$F2F2F-F3F-F-,&*&F " 0 "" {MPLTEXT 1 0 15 "evalm(N^(-1)); " }}{PARA 11 "" 1 " " {XPPMATH 20 "6#-%'matrixG6#7$7$*&%\"dG\"\"\",&*&%\"aGF*F)F*F**&%\"bG F*%\"cGF*!\"\"F1,$*&F/F*F+F1F17$,$*&F0F*F+F1F1*&F-F*F+F1" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 24 "Puissance n-i\350me avec ^n" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 15 "evalm(N^3); " }}{PARA 11 "" 1 " " {XPPMATH 20 "6#-%'matrixG6#7$7$,&*&,&*$)%\"aG\"\"#\"\"\"F/*&%\"bGF/% \"cGF/F/F/F-F/F/*&,&*&F-F/F1F/F/*&F1F/%\"dGF/F/F/F2F/F/,&*&F*F/F1F/F/* &F4F/F7F/F/7$,&*&,&*&F2F/F-F/F/*&F7F/F2F/F/F/F-F/F/*&,&F0F/*$)F7F.F/F/ F/F2F/F/,&*&F>F/F1F/F/*&FBF/F7F/F/" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 38 "Multiplication par un scalaire avec * " }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 19 "evalm(2*M-5*N); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7$7$,&&%\"MG6$\"\"\"F,\"\"#*&\"\"&F,%\"aGF, !\"\",&&F*6$F,F-F-*&F/F,%\"bGF,F17$,&&F*6$F-F,F-*&F/F,%\"cGF,F1,&&F*6$ F-F-F-*&F/F,%\"dGF,F1" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT 260 29 "LES OUTILS DU PACKAGE LINALG:" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT -1 11 "Le package " } {TEXT 261 6 "linalg" }{TEXT -1 60 " contient plus d'une centaine d'out ils en alg\350bre lin\351aire :" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }} {PARA 0 "> " 0 "" {MPLTEXT 1 0 13 "with(linalg);" }}{PARA 12 "" 1 "" {XPPMATH 20 "6#7^r%.BlockDiagonalG%,GramSchmidtG%,JordanBlockG%)LUdeco mpG%)QRdecompG%*WronskianG%'addcolG%'addrowG%$adjG%(adjointG%&angleG%( augmentG%(backsubG%%bandG%&basisG%'bezoutG%,blockmatrixG%(charmatG%)ch arpolyG%)choleskyG%$colG%'coldimG%)colspaceG%(colspanG%*companionG%'co ncatG%%condG%)copyintoG%*crossprodG%%curlG%)definiteG%(delcolsG%(delro wsG%$detG%%diagG%(divergeG%(dotprodG%*eigenvalsG%,eigenvaluesG%-eigenv ectorsG%+eigenvectsG%,entermatrixG%&equalG%,exponentialG%'extendG%,ffg ausselimG%*fibonacciG%+forwardsubG%*frobeniusG%*gausselimG%*gaussjordG %(geneqnsG%*genmatrixG%%gradG%)hadamardG%(hermiteG%(hessianG%(hilbertG %+htransposeG%)ihermiteG%*indexfuncG%*innerprodG%)intbasisG%(inverseG% 'ismithG%*issimilarG%'iszeroG%)jacobianG%'jordanG%'kernelG%*laplacianG %*leastsqrsG%)linsolveG%'mataddG%'matrixG%&minorG%(minpolyG%'mulcolG%' mulrowG%)multiplyG%%normG%*normalizeG%*nullspaceG%'orthogG%*permanentG %&pivotG%*potentialG%+randmatrixG%+randvectorG%%rankG%(ratformG%$rowG% 'rowdimG%)rowspaceG%(rowspanG%%rrefG%*scalarmulG%-singularvalsG%&smith G%,stackmatrixG%*submatrixG%*subvectorG%)sumbasisG%(swapcolG%(swaprowG %*sylvesterG%)toeplitzG%&traceG%*transposeG%,vandermondeG%*vecpotentG% (vectdimG%'vectorG%*wronskianG" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }} {EXCHG {PARA 0 "" 0 "" {TEXT -1 14 "Les fonctions " }{TEXT 262 6 "matr ix" }{TEXT -1 4 " et " }{TEXT 263 6 "vector" }{TEXT -1 59 " permettent de d\351finir respectivement une matrice (tableau " }}{PARA 0 "" 0 " " {TEXT -1 76 "rectangulaire d'objets) ou un vecteur (tableau d'objets \340 une seule ligne) :" }}{PARA 0 "" 0 "" {TEXT -1 31 "\nD\351finiti on d'une matrice 2x4 :" }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 34 "P:=matrix ([[s,t,u,v],[w,x,y,z]]); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"PG-%' matrixG6#7$7&%\"sG%\"tG%\"uG%\"vG7&%\"wG%\"xG%\"yG%\"zG" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 75 "D\351finition d'un vecteur-ligne d'ordre \+ 4 et d'une matrice-colonne d'ordre 3:" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 22 "V:=vector([a,b,c,d]); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"VG-%'vectorG6#7&%\"aG%\"bG%\"cG%\"dG" }}}{EXCHG {PARA 0 "> \+ " 0 "" {MPLTEXT 1 0 27 "C:=matrix([[1],[2],[3]]); " }}{PARA 11 "" 1 " " {XPPMATH 20 "6#>%\"CG-%'matrixG6#7%7#\"\"\"7#\"\"#7#\"\"$" }}} {EXCHG {PARA 0 "" 0 "" {TEXT -1 22 "Une matrice a le type " }{TEXT 264 6 "matrix" }{TEXT -1 24 " , un vecteur a le type " }{TEXT 265 6 "v ector" }{TEXT -1 1 "." }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT 318 27 "Op\351rations sur les matrices" }{TEXT -1 1 ":" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT -1 26 "A la place de la fonction " }{TEXT 266 5 "evalm" }{TEXT -1 53 ", o n peut utiliser les outils sp\351cifiques du package " }{TEXT 267 6 "l inalg" }{TEXT -1 1 ":" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT -1 73 "Multiplication de vecteurs ou de matrices de dimensions compatibles avec " }{TEXT 319 9 "multiply " }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 15 "mult iply(M,N); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7$7$,&*&&% \"MG6$\"\"\"F-F-%\"aGF-F-*&&F+6$F-\"\"#F-%\"cGF-F-,&*&F*F-%\"bGF-F-*&F 0F-%\"dGF-F-7$,&*&&F+6$F2F-F-F.F-F-*&&F+6$F2F2F-F3F-F-,&*&F " 0 "" {MPLTEXT 1 0 11 "inverse(N);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7$7$*&%\"dG\"\"\",&*&%\"aGF*F)F*F**&% \"bGF*%\"cGF*!\"\"F1,$*&F/F*F+F1F17$,$*&F0F*F+F1F1*&F-F*F+F1" }}} {EXCHG {PARA 0 "" 0 "" {TEXT -1 31 "Multiplication par un scalaire " } {XPPEDIT 18 0 "lambda;" "6#%'lambdaG" }{TEXT -1 6 " avec " }{TEXT 321 9 "scalarmul" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 22 "scalarmul(P ,lambda); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7$7&*&%'lam bdaG\"\"\"%\"sGF**&F)F*%\"tGF**&F)F*%\"uGF**&F)F*%\"vGF*7&*&F)F*%\"wGF **&F)F*%\"xGF**&F)F*%\"yGF**&F)F*%\"zGF*" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 37 "Test d'\351galit\351 de deux matrices avec " }{TEXT 322 5 "equal" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 11 "equal(M,N);" }} {PARA 11 "" 1 "" {XPPMATH 20 "6#%&falseG" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT -1 0 "" }{TEXT 268 20 "Etude d'une matrice:" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT -1 73 "D\351terminant et trace d'une matrice carr\351e (somme des \351l \351ments diagonaux):" }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 44 "N:=matrix( [[1,2],[4,-3]]);det(N);trace(N); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6# >%\"NG-%'matrixG6#7$7$\"\"\"\"\"#7$\"\"%!\"$" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#!#6" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#!\"#" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 19 "Rang d'une matrice:" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 11 "rank(N); " }}{PARA 11 "" 1 "" {XPPMATH 20 " 6#\"\"#" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 233 "kernel(A); ou nullsp ace(A); d\351termine une base du noyau de A\ncolspace(A); d\351termine une base du sous-espace engendr\351 par les vecteurs-colonnes de A\nr owspace(A); d\351termine une base du sous-espace engendr\351 par les v ecteurs-lignes de A" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 38 "A:=m atrix([[2,-2],[-1,1]]);kernel(A); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6# >%\"AG-%'matrixG6#7$7$\"\"#!\"#7$!\"\"\"\"\"" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#<#-%'vectorG6#7$\"\"\"F(" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 14 "colspace(A); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#<#- %'vectorG6#7$\"\"\"#!\"\"\"\"#" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 12 "rowspace(A);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#<#-%'vectorG6# 7$\"\"\"!\"\"" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT 269 24 "Matrice caract\351ristique:" }{TEXT -1 1 " " } {XPPEDIT 18 0 "lambda*I-A" "6#,&*&%'lambdaG\"\"\"%\"IGF&F&%\"AG!\"\"" }{TEXT -1 3 " , " }{TEXT 270 30 "polyn\364me caract\351ristique de A: " }{TEXT -1 1 " " }{XPPEDIT 18 0 "det(lambda*I-A)" "6#-%$detG6#,&*&%'l ambdaG\"\"\"%\"IGF)F)%\"AG!\"\"" }{TEXT -1 1 "." }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 18 "charmat(A,lambda);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6 #-%'matrixG6#7$7$,&%'lambdaG\"\"\"\"\"#!\"\"F+7$F*,&F)F*F*F," }}} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 19 "charpoly(A,lambda);" }} {PARA 11 "" 1 "" {XPPMATH 20 "6#,&*$)%'lambdaG\"\"#\"\"\"F(*&\"\"$F(F& F(!\"\"" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 72 "Valeurs propres de A ( ce sont les racines du polyn\364me caract\351ristique): " }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 14 "eigenvals(A); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6$\"\"!\"\"$" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 3 "Un " }{TEXT 324 14 "vecteur propre" }{TEXT -1 14 " associ\351 \340 la " } {TEXT 325 13 "valeur propre" }{TEXT -1 2 " " }{XPPEDIT 18 0 "lambda" "6#%'lambdaG" }{TEXT -1 16 " est un vecteur " }{TEXT 323 1 "X" }{TEXT -1 17 " non nul tel que " }{XPPEDIT 18 0 "A*X = lambda* X" "6#/*&%\"AG \"\"\"%\"XGF&*&%'lambdaGF&F'F&" }{TEXT -1 2 " ." }}}{EXCHG {PARA 0 "> \+ " 0 "" {MPLTEXT 1 0 15 "eigenvects(A); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6$7%\"\"!\"\"\"<#-%'vectorG6#7$F%F%7%\"\"$F%<#-F(6#7$!\"#F%" }}} {PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT -1 33 "Le r\351sultat affich\351 signifie que " }{XPPEDIT 18 0 "lambda=0" "6#/% 'lambdaG\"\"!" }{TEXT -1 59 " est une valeur propre d'ordre 1 de vecte ur propre associ\351 " }}{PARA 0 "" 0 "" {XPPEDIT 18 0 "X=(1,1)" "6#/% \"XG6$\"\"\"F&" }{TEXT -1 8 " et que " }{XPPEDIT 18 0 "lambda=3" "6#/% 'lambdaG\"\"$" }{TEXT -1 59 " est une valeur propre d'ordre 1 de vecte ur propre associ\351 " }{XPPEDIT 18 0 "X=(-2,1)" "6#/%\"XG6$,$\"\"#!\" \"\"\"\"" }{TEXT -1 1 "." }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT 271 27 "Modification d'une matrice:" }}{PARA 0 " " 0 "" {TEXT -1 0 "" }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 9 "print(P);" }} {PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7$7&%\"sG%\"tG%\"uG%\"vG7& %\"wG%\"xG%\"yG%\"zG" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT 272 8 "row(P,k)" }{TEXT -1 81 " permet d'extraire la k -i\350me ligne de la matrice P. Le r\351sultat est un vecteur. " }} {PARA 0 "" 0 "" {TEXT 273 8 "col(P,k)" }{TEXT -1 81 " permet d'extrair e la k-i\350me colonne de la matrice P. Le r\351sultat est un vecteur. " }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 18 "row(P,2),col(P,3);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6$-%'vectorG6#7&%\"wG%\"xG%\"yG%\"zG-F$6#7$%\"uGF )" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT 275 9 "rowdim(P)" }{TEXT -1 4 " et " }{TEXT 276 9 "coldim(P)" }{TEXT -1 61 " retournent le nombre de lignes et de colonnes de la matrice " }{TEXT 274 1 "P" }{TEXT -1 1 "." }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 20 " rowdim(P),coldim(P);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6$\"\"#\"\"%" }} }{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT 277 21 " augment(M1,M2,...,Mn)" }{TEXT -1 42 " permet de concat\351ner horizont alement les " }{TEXT 279 1 "n" }{TEXT -1 10 " matrices " }{TEXT 281 12 "M1,M2,...,Mn" }{TEXT -1 1 ":" }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 13 "augment(A,P);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7$7(\"\" #!\"#%\"sG%\"tG%\"uG%\"vG7(!\"\"\"\"\"%\"wG%\"xG%\"yG%\"zG" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT 278 25 "stackma trix(M1,M2,...,Mn)" }{TEXT -1 40 " permet de concat\351ner verticaleme nt les " }{TEXT 280 1 "n" }{TEXT -1 10 " matrices " }{TEXT 282 12 "M1, M2,...,Mn" }{TEXT -1 1 ":" }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 17 "stackm atrix(A,N);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7&7$\"\"#! \"#7$!\"\"\"\"\"7$F,F(7$\"\"%!\"$" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }} {EXCHG {PARA 0 "" 0 "" {TEXT 283 17 "copyinto(M,N,m,n)" }{TEXT -1 9 " \+ : copie " }{TEXT 284 2 "M " }{TEXT -1 5 "dans " }{TEXT 285 1 "N" } {TEXT -1 12 " , l'\351l\351ment" }{TEXT 326 1 " " }{TEXT 286 6 "M[1,1] " }{TEXT -1 16 " \351tant copi\351 en " }{TEXT 287 6 "N[m,n]" }{TEXT -1 2 " :" }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 18 "copyinto(N,P,1,2);" }} {PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7$7&%\"sG\"\"\"\"\"#%\"vG7 &%\"wG\"\"%!\"$%\"zG" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT 288 14 "swapcol(M,m,n)" }{TEXT -1 4 " et " }{TEXT 289 14 "swaprow(M,m,n)" }{TEXT -1 51 " permettent d'\351changer les colonn es (ou les lignes)" }}{PARA 0 "" 0 "" {TEXT 290 1 "m" }{TEXT -1 4 " et " }{TEXT 291 1 "n" }{TEXT -1 15 " de la matrice " }{TEXT 292 1 "M" } {TEXT -1 1 ":" }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 15 "swaprow(A,1,2);" } }{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7$7$!\"\"\"\"\"7$\"\"#!\" #" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT 293 13 "transpose(M) " }{TEXT -1 32 "permet de transposer la matrice \+ " }{TEXT 294 1 "M" }{TEXT -1 1 ":" }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 22 "print(M);transpose(M);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matri xG6#7$7$&%\"MG6$\"\"\"F+&F)6$F+\"\"#7$&F)6$F.F+&F)6$F.F." }}{PARA 11 " " 1 "" {XPPMATH 20 "6#-%'matrixG6#7$7$&%\"MG6$\"\"\"F+&F)6$\"\"#F+7$&F )6$F+F.&F)6$F.F." }}}{EXCHG {PARA 0 "" 0 "" {TEXT 295 15 "addcol(M,m,n ,k)" }{TEXT -1 4 " ou " }{TEXT 296 16 "addrow(M,m,n,k) " }{TEXT -1 40 "rendent une matrice obtenue \340 partir de " }{TEXT 297 1 "M" }{TEXT -1 4 " par" }}{PARA 0 "" 0 "" {TEXT -1 12 "l'op\351ration " }{TEXT 298 29 "col n := col n + k * col m " }{TEXT -1 17 "(respectivement \+ " }{TEXT 299 26 "lig n := lig n + k * lig m" }{TEXT -1 3 ") :" }} {PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 26 "pri nt(N);addcol(N,1,2,mu);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6 #7$7$\"\"\"\"\"#7$\"\"%!\"$" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matr ixG6#7$7$\"\"\",&%#muGF(\"\"#F(7$\"\"%,&F*F-\"\"$!\"\"" }}}{EXCHG {PARA 0 "" 0 "" {TEXT 300 23 "Matrices particuli\350res:" }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 23 "vandermonde([a,b,c,d]);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7&7&\"\"\"%\"aG*$)F)\"\"#F(*$)F)\"\"$F(7&F( %\"bG*$)F1F,F(*$)F1F/F(7&F(%\"cG*$)F7F,F(*$)F7F/F(7&F(%\"dG*$)F=F,F(*$ )F=F/F(" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 21 "JordanBlock(expr ,4); " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7&7&%%exprG\"\"\" \"\"!F*7&F*F(F)F*7&F*F*F(F)7&F*F*F*F(" }}}{PARA 0 "" 0 "" {TEXT -1 0 " " }}{PARA 0 "" 0 "" {TEXT 336 36 "LES OUTILS DU PACKAGE LinearAlgebra: " }{TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT -1 63 "A partir de la version 7, existe dans Maple un nouve au package " }{TEXT 337 14 "LinearAlgebra " }{TEXT 338 0 "" }{TEXT 339 0 "" }{TEXT 340 4 "avec" }}{PARA 0 "" 0 "" {TEXT 343 40 "des outil s similaires \340 ceux du package " }{TEXT 341 6 "linalg" }{TEXT 342 58 " et destin\351 \340 supplanter l'ancien. En voici les fonctions:" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 20 "with(LinearAlgebra);" }} {PARA 12 "" 1 "" {XPPMATH 20 "6#7hq%$AddG%(AdjointG%3BackwardSubstitut eG%+BandMatrixG%&BasisG%-BezoutMatrixG%/BidiagonalFormG%-BilinearFormG %5CharacteristicMatrixG%9CharacteristicPolynomialG%'ColumnG%0ColumnDim ensionG%0ColumnOperationG%,ColumnSpaceG%0CompanionMatrixG%0ConditionNu mberG%/ConstantMatrixG%/ConstantVectorG%2CreatePermutationG%-CrossProd uctG%-DeleteColumnG%*DeleteRowG%,DeterminantG%/DiagonalMatrixG%*Dimens ionG%+DimensionsG%+DotProductG%,EigenvaluesG%-EigenvectorsG%&EqualG%2F orwardSubstituteG%.FrobeniusFormG%4GaussianEliminationG%2GenerateEquat ionsG%/GenerateMatrixG%2GetResultDataTypeG%/GetResultShapeG%5GivensRot ationMatrixG%,GramSchmidtG%-HankelMatrixG%,HermiteFormG%3HermitianTran sposeG%/HessenbergFormG%.HilbertMatrixG%2HouseholderMatrixG%/IdentityM atrixG%2IntersectionBasisG%+IsDefiniteG%-IsOrthogonalG%*IsSimilarG%*Is UnitaryG%2JordanBlockMatrixG%+JordanFormG%(LA_MainG%0LUDecompositionG% -LeastSquaresG%,LinearSolveG%$MapG%%Map2G%*MatrixAddG%.MatrixInverseG% 5MatrixMatrixMultiplyG%+MatrixNormG%5MatrixScalarMultiplyG%5MatrixVect orMultiplyG%2MinimalPolynomialG%&MinorG%)MultiplyG%,NoUserValueG%%Norm G%*NormalizeG%*NullSpaceG%3OuterProductMatrixG%*PermanentG%&PivotG%0QR DecompositionG%-RandomMatrixG%-RandomVectorG%%RankG%6ReducedRowEchelon FormG%$RowG%-RowDimensionG%-RowOperationG%)RowSpaceG%-ScalarMatrixG%/S calarMultiplyG%-ScalarVectorG%*SchurFormG%/SingularValuesG%*SmithFormG %*SubMatrixG%*SubVectorG%)SumBasisG%0SylvesterMatrixG%/ToeplitzMatrixG %&TraceG%*TransposeG%0TridiagonalFormG%+UnitVectorG%2VandermondeMatrix G%*VectorAddG%,VectorAngleG%5VectorMatrixMultiplyG%+VectorNormG%5Vecto rScalarMultiplyG%+ZeroMatrixG%+ZeroVectorG%$ZipG" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT -1 99 "On d\351finit une \+ matrice A dont on calcule le d\351terminant, la matrice et le polyn \364me caract\351ristique," }}{PARA 0 "" 0 "" {TEXT -1 59 "ainsi que l es valeurs propres et vecteurs propres associ\351s:" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 168 "A:=Matrix([[1,-1,-1],[-2,2,3],[2,-2,-3]] );\nDeterminant(A);\nCharacteristicMatrix(A,lambda);\nfactor(Character isticPolynomial(A,lambda));\nEigenvalues(A);\nEigenvectors(A);\n" }} {PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"AG-%'RTABLEG6$\"*[)\\\"\\\"-%'MATR IXG6#7%7%\"\"\"!\"\"F/7%!\"#\"\"#\"\"$7%F2F1!\"$" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#\"\"!" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'RTABLEG6$\" *WB:\\\"-%'MATRIXG6#7%7%,&%'lambdaG!\"\"\"\"\"F/F.F.7%!\"#,&F-F.\"\"#F /\"\"$7%F3F1,&F-F.F4F." }}{PARA 11 "" 1 "" {XPPMATH 20 "6#*(,&%'lambda G\"\"\"F&!\"\"F&F%F&,&F%F&F&F&F&" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-% 'RTABLEG6$\"*#4<\"\\\"-%'MATRIXG6#7%7#\"\"\"7#\"\"!7#!\"\"" }}{PARA 11 "" 1 "" {XPPMATH 20 "6$-%'RTABLEG6$\"*S9;\\\"-%'MATRIXG6#7%7#!\"\"7 #\"\"!7#\"\"\"-F$6$\"*Gt;\\\"-F(6#7%7%F.F0F07%F0F0F,7%F,F.F0" }}} {PARA 256 "" 0 "" {TEXT -1 19 "Exercice corrig\351 8:" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 "" {TEXT -1 32 "Rechercher les \+ matrices carr\351es " }{TEXT 301 1 "X" }{TEXT -1 23 " d'ordre 2 telles que " }{XPPEDIT 18 0 "X^2 + X = A" "6#/,&*$%\"XG\"\"#\"\"\"F&F(%\"AG " }{TEXT -1 8 " , o\371 " }{XPPEDIT 18 0 "A := MATRIX([[1, 1], [1, 1 ]])" "6#>%\"AG-%'MATRIXG6#7$7$\"\"\"F*7$F*F*" }{TEXT -1 2 " ." }}} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 45 "with(linalg):A:=matrix(2,2,1 );X:=matrix(2,2):" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"AG-%'matrixG6 #7$7$\"\"\"F*F)" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 18 "Y:=evalm (X^2+X-A);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"YG-%'matrixG6#7$7$,* *$)&%\"XG6$\"\"\"F0\"\"#F0F0*&&F.6$F0F1F0&F.6$F1F0F0F0F-F0F0!\"\",**&F -F0F3F0F0*&F3F0&F.6$F1F1F0F0F3F0F0F77$,**&F5F0F-F0F0*&F;F0F5F0F0F5F0F0 F7,*F2F0*$)F;F1F0F0F;F0F0F7" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 37 "Y:=\{seq(seq(Y[i,j],j=1..2),i=1..2)\}; " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"YG<&,**$)&%\"XG6$\"\"\"F,\"\"#F,F,*&&F*6$F,F-F,&F*6 $F-F,F,F,F)F,F,!\"\",*F.F,*$)&F*6$F-F-F-F,F,F7F,F,F3,**&F)F,F/F,F,*&F/ F,F7F,F,F/F,F,F3,**&F1F,F)F,F,*&F7F,F1F,F,F1F,F,F3" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 108 "solutions:=\{solve(Y)\}:\nfor k to nops(so lutions) do\n X:=matrix(2,2):assign(solutions[k]):print(X);\nend do: \+ " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7$7$\"\"!\"\"\"7$F)F( " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7$7$#!\"$\"\"##!\"\"F* 7$F+F(" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7$7$#\"\"\"\"\"# F(F'" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7$7$!\"\"F(F'" }}} {EXCHG {PARA 0 "" 0 "" {TEXT -1 26 "Donc 4 matrices solutions." }}} {PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 256 "" 0 "" {TEXT -1 17 "Travail dirig\351 8:" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 0 " " {TEXT 303 7 "TD 8.1:" }}{PARA 0 "" 0 "" {TEXT -1 21 "Ecrire une proc \351dure " }{TEXT 304 12 "pcd(L::list)" }{TEXT -1 40 " retournant \340 partir d'une liste donn\351e " }{TEXT 305 1 "L" }{TEXT -1 21 " la lis te obtenue par" }}{PARA 0 "" 0 "" {TEXT -1 54 "permutation circulaire \+ vers la droite des \351l\351ments de " }{TEXT 313 1 "L" }{TEXT -1 1 ". " }}{PARA 0 "" 0 "" {TEXT -1 0 "" }{TEXT 306 8 "Exemple:" }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 21 "pcd([a,b,c,d,e,f,g]);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#7)%\"gG%\"aG%\"bG%\"cG%\"dG%\"eG%\"fG" }}{PARA 0 "" 0 " " {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }{TEXT 307 7 "TD 8.2: " }}{PARA 0 "" 0 "" {TEXT -1 21 "Ecrire une proc\351dure " }{TEXT 308 28 "circulante_droite(n::posint)" }{TEXT -1 33 " retournant \340 parti r de l'entier " }{TEXT 309 2 "n>" }{TEXT -1 1 "0" }}{PARA 0 "" 0 "" {TEXT -1 27 "une matrice carr\351e d'ordre " }{TEXT 310 1 "n" }{TEXT -1 10 " telle que" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT -1 67 " - sa premi\350re ligne est constitu\351e par les entiers de 1 \340 " }{TEXT 311 1 "n" }{TEXT -1 1 "." }}{PARA 0 "" 0 " " {TEXT -1 16 " - pour " }{TEXT 312 2 "k>" }{TEXT -1 70 "1 , s a k-i\350me ligne est d\351duite de la ligne pr\351c\351dente par perm utation" }}{PARA 0 "" 0 "" {TEXT -1 53 " circulaire vers la \+ droite de ses \351l\351ments." }}{PARA 0 "" 0 "" {TEXT -1 0 "" }} {PARA 0 "" 0 "" {TEXT 302 8 "Exemple:" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 21 "circulante_droite(5);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%'matrixG6#7'7'\"\"\"\"\"#\"\"$\"\"%\"\"&7'F,F(F)F*F+7'F+F,F(F) F*7'F*F+F,F(F)7'F)F*F+F,F(" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "" 1 "" {TEXT 327 7 "TD 8.3:" }{TEXT 335 1 " " }{TEXT -1 0 "" }{TEXT 328 29 "Test d'\351galit\351 de 2 matrices:" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT -1 11 "2 matrices " }{TEXT 329 1 "M" }{TEXT -1 4 " et " }{TEXT 330 1 "N" }{TEXT -1 69 " sont \351gale s si et seulement si elles ont m\352me nombre de lignes, m\352me" }} {PARA 0 "" 0 "" {TEXT -1 47 "nombre de colonnes, et les m\352mes coeff icients ." }}{PARA 0 "" 0 "" {TEXT -1 83 "Sans avoir recours \340 la f onction pr\351existante equal de Maple, \351crire une proc\351dure " } }{PARA 0 "" 0 "" {TEXT 331 31 "egal(M: : matrix , N: : matrix)" } {TEXT -1 32 " retournant la valeur bool\351enne " }{TEXT 332 4 "true" }{TEXT -1 4 " si " }{TEXT 333 4 "M=N " }{TEXT -1 3 "et " }{TEXT 334 5 "false" }{TEXT -1 7 " sinon." }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}} {MARK "1 3" 19 }{VIEWOPTS 1 1 0 1 1 1803 1 1 1 1 }{PAGENUMBERS 0 1 2 33 1 1 }{RTABLE_HANDLES 149149848 149152344 149117092 149161440 149167328 }{RTABLE M7R0 I6RTABLE_SAVE/149149848X,%)anythingG6"6"[gl!"%!!!#*"$"$"""!"#""#!""F)F(F*""$!"$ 6" } {RTABLE M7R0 I6RTABLE_SAVE/149152344X,%)anythingG6"6"[gl!"%!!!#*"$"$,&%'lambdaG!"""""F*!"#"" #F),&F(F)F,F*F+F)""$,&F(F)!"$F*6" } {RTABLE M7R0 I6RTABLE_SAVE/149117092X*%)anythingG6"6"[gl!#%!!!"$"$"""""!!""6" } {RTABLE M7R0 I6RTABLE_SAVE/149161440X*%*algebraicG6"6"[gl!#%!!!"$"$!""""!"""6" } {RTABLE M7R0 I6RTABLE_SAVE/149167328X,%*algebraicG6"6"[gl!"%!!!#*"$"$""!"""!""F(F(F'F(F)F(6" }