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{SECT 0 {EXCHG {PARA 0 "" 0 "" {TEXT -1 19 "Figure2.2.8; page31" }}}
{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 14 "with(DEtools):" }}}{EXCHG 
{PARA 0 "> " 0 "" {MPLTEXT 1 0 67 "de1:=diff(x(t),t)=-4*x(t)+5*y(t):\n
de2:=diff(y(t),t)=-5*x(t)+2*y(t):" }}}{EXCHG {PARA 0 "> " 0 "" 
{MPLTEXT 1 0 14 "Wind:=t=-7..7:" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 
1 0 40 "Ics:=[[x(0)=3,y(0)=5],[x(0)=-4,y(0)=0]]:" }}}{EXCHG {PARA 0 ">
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linecolor=red,\ntitle=`phase portrait Ex 2.2.8 with a stable focus`:" 
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