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Solutions are also obtained\nnumerically using fsolve ." }}}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 12 "with(plots):" }} {PARA 7 "" 1 "" {TEXT -1 50 "Warning, the name changecoords has been r edefined\n" }}}{SECT 0 {PARA 3 "" 0 "" {TEXT -1 49 "The Function f Bei ng Optimized and the Constraint" }}{EXCHG {PARA 0 "" 0 "" {TEXT 258 29 "The function being optimized." }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 14 "f := y*exp(x);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"fG*&%\"yG\" \"\"-%$expG6#%\"xGF'" }}}{EXCHG {PARA 0 "" 0 "" {TEXT 259 27 "The cons traint, an ellipse." }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 31 "constr1 := \+ x^2+x*y+4*y^2 -1=0;" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%(constr1G/,** $)%\"xG\"\"#\"\"\"F+*&F)F+%\"yGF+F+*&\"\"%F+)F-F*F+F+F+!\"\"\"\"!" }}} }{SECT 0 {PARA 3 "" 0 "" {TEXT -1 50 "The Constraint Set With Typical \+ Level Curves of f " }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 56 "gr1 := implicitplot(constr1,x=-2..2,y=-2..2,color=blue):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 14 "display(gr1);\n" }}{PARA 13 "" 1 "" {GLPLOT2D 254 254 254 {PLOTDATA 2 "6$-%'CURVESG6[o7$7$$!3e0++++++))!#= $!3!o************R\"F*7$$!3_(**********zW*F*$!3)[.++++++)!#>7$F-7$$!3C ***********\\,\"!#<$\"3gW)**********\\&F27$7$$!3KI\"R<_cp-\"F7$\"3[l** **********zF2F47$7$F<$\"35k************zF27$$!3B++++++55F7$\"33%****** ******4#F*7$7$$!36Vr&G9dG+\"F7$\"3e'************R#F*FD7$FJ7$$!3S.+++++ X%*F*$\"3/'**********\\/$F*7$7$$!3[/++++++))F*$\"3+E9dG9dGOF*FP7$7$$!3 =/++++++sF*$!3M+RC!RC!REF*7$$!3uL<_cp3EwF*$!3C.++++++CF*7$7$F\\o$!3_.+ +++++CF*F'7$FV7$$!3Ko_5Uot%f)F*$\"3sg_5Uot%z$F*7$7$$!3C1+++++!G)F*$\"3 )o*************RF*Feo7$7$$!390+++++!G)F*F^p7$$!3Fn%Q:YQ:^(F*$\"3Vf%Q:Y Q:J%F*7$7$Fgn$\"3C8YQ:YQ:WF*Fdp7$7$Fgn$!3*3!RC!RC!REF*7$$!3%[,+++++r'F *$!37$************)GF*7$7$$!3'Q++++++g&F*$!3!*G#p2Bp2V$F*Faq7$Fjp7$$!3 -1+++++wiF*$\"3])**********fn%F*7$7$Fhq$\"3wPC!RC!RC[F*F]r7$7$$!3c.+++ +++SF*$!334:kA'RV4%F*7$$!3Q9)eqk