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{PARA 11 "" 1 "" {XPPMATH 20 "6&$\"#S!\"#$\"+279b;!\"*f*6$%\"xG%\"yG6
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{XPPMATH 20 "6&$\"#U!\"#$\"+(*Qq@<!\"*f*6$%\"xG%\"yG6\"6$%)operatorG%&
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{XPPMATH 20 "6&$\"#n!\"#$\"+o72]C!\"*f*6$%\"xG%\"yG6\"6$%)operatorG%&a
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20 "6&$\"#o!\"#$\"+b0dvC!\"*f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF-,&
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20 "6&$\"#w!\"#$\"+ChfqE!\"*f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF-,&
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11 "" 1 "" {XPPMATH 20 "6&$\"##)!\"#$\"+\"\\7p!G!\"*f*6$%\"xG%\"yG6\"6
$%)operatorG%&arrowGF-,&\"\"&\"\"\"9%!\"\"F-F-F-$F3F%" }}{PARA 11 "" 
1 "" {XPPMATH 20 "6&$\"#$)!\"#$\"+mL%)GG!\"*f*6$%\"xG%\"yG6\"6$%)opera
torG%&arrowGF-,&\"\"&\"\"\"9%!\"\"F-F-F-$F3F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6&$\"#%)!\"#$\"+K\\b]G!\"*f*6$%\"xG%\"yG6\"6$%)operatorG%
&arrowGF-,&\"\"&\"\"\"9%!\"\"F-F-F-$F3F%" }}{PARA 11 "" 1 "" {XPPMATH 
20 "6&$\"#&)!\"#$\"+$Q\\?(G!\"*f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF
-,&\"\"&\"\"\"9%!\"\"F-F-F-$F3F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6&$
\"#')!\"#$\"+*))GL*G!\"*f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF-,&\"\"
&\"\"\"9%!\"\"F-F-F-$F3F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6&$\"#()!\"
#$\"++cR9H!\"*f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF-,&\"\"&\"\"\"9%!
\"\"F-F-F-$F3F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6&$\"#))!\"#$\"+W;DNH
!\"*f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF-,&\"\"&\"\"\"9%!\"\"F-F-F-
$F3F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6&$\"#*)!\"#$\"+G\"**e&H!\"*f*6
$%\"xG%\"yG6\"6$%)operatorG%&arrowGF-,&\"\"&\"\"\"9%!\"\"F-F-F-$F3F%" 
}}{PARA 11 "" 1 "" {XPPMATH 20 "6&$\"#!*!\"#$\"+P,MwH!\"*f*6$%\"xG%\"y
G6\"6$%)operatorG%&arrowGF-,&\"\"&\"\"\"9%!\"\"F-F-F-$F3F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6&$\"#\"*!\"#$\"+Ond'*H!\"*f*6$%\"xG%\"yG6\"6$
%)operatorG%&arrowGF-,&\"\"&\"\"\"9%!\"\"F-F-F-$F3F%" }}{PARA 11 "" 1 
"" {XPPMATH 20 "6&$\"##*!\"#$\"+p4h;I!\"*f*6$%\"xG%\"yG6\"6$%)operator
G%&arrowGF-,&\"\"&\"\"\"9%!\"\"F-F-F-$F3F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6&$\"#$*!\"#$\"+f[WOI!\"*f*6$%\"xG%\"yG6\"6$%)operatorG%&
arrowGF-,&\"\"&\"\"\"9%!\"\"F-F-F-$F3F%" }}{PARA 11 "" 1 "" {XPPMATH 
20 "6&$\"#%*!\"#$\"+5/3cI!\"*f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF-,
&\"\"&\"\"\"9%!\"\"F-F-F-$F3F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6&$\"#
&*!\"#$\"+1'>b2$!\"*f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF-,&\"\"&\"
\"\"9%!\"\"F-F-F-$F3F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6&$\"#'*!\"#$
\"+5Ww%4$!\"*f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF-,&\"\"&\"\"\"9%!
\"\"F-F-F-$F3F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6&$\"#(*!\"#$\"+mn\"Q
6$!\"*f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF-,&\"\"&\"\"\"9%!\"\"F-F-
F-$F3F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6&$\"#)*!\"#$\"+)fyE8$!\"*f*6
$%\"xG%\"yG6\"6$%)operatorG%&arrowGF-,&\"\"&\"\"\"9%!\"\"F-F-F-$F3F%" 
}}{PARA 11 "" 1 "" {XPPMATH 20 "6&$\"#**!\"#$\"+7=N^J!\"*f*6$%\"xG%\"y
G6\"6$%)operatorG%&arrowGF-,&\"\"&\"\"\"9%!\"\"F-F-F-$F3F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6#$\"+%HQ)pJ!\"*" }}}{EXCHG {PARA 0 "> " 0 "" 
{MPLTEXT 1 0 61 "dsolve(\{D(y)(t)=5-y(t),y(0)=0\});evalf(subs(t=1,5-5*
exp(-t)));" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#/-%\"yG6#%\"tG,&\"\"&\"
\"\"*&F)F*-%$expG6#,$F'!\"\"F*F0" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#$
\"+%z-1;$!\"*" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 20 "# Runge-Ku
tta method" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 47 "rksetup:=(x,y
,f,h) -> (x,y,x+h,y+f(x,y)*h,f,h);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#
>%(rksetupGf*6&%\"xG%\"yG%\"fG%\"hG6\"6$%)operatorG%&arrowGF+6(9$9%,&F
0\"\"\"9'F3,&F1F3*&F4F3-9&6$F0F1F3F3F8F4F+F+F+" }}}{EXCHG {PARA 0 "> \+
" 0 "" {MPLTEXT 1 0 69 "onerkstep:=(x,y,x2,y2,f,h)->rksetup(x+h,y+h*(f
(x,y)+f(x2,y2))/2,f,h);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%*onerkste
pGf*6(%\"xG%\"yG%#x2G%#y2G%\"fG%\"hG6\"6$%)operatorG%&arrowGF--%(rkset
upG6&,&9$\"\"\"9)F6,&9%F6*&#F6\"\"#F6*&F7F6,&-9(6$F5F9F6-F@6$9&9'F6F6F
6F6F@F7F-F-F-" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 54 "prerksolve
:=(x,y,x2,y2,f,h,x3) ->if x>=x3 then y else " }}{PARA 0 "> " 0 "" 
{MPLTEXT 1 0 70 "(print(x,y,x2,y2,f,h),prerksolve(onerkstep(x,y,x2,y2,
f,h),x3)) end if;" }}{PARA 12 "" 1 "" {XPPMATH 20 "6#>%+prerksolveGf*6
)%\"xG%\"yG%#x2G%#y2G%\"fG%\"hG%#x3G6\"6$%)operatorG%&arrowGF.@%19*9$9
%6$-%&printG6(F5F69&9'9(9)-F$6$-%*onerkstepGF:F4F.F.F." }}}{EXCHG 
{PARA 0 "> " 0 "" {MPLTEXT 1 0 55 "rksolve:=(x,y,f,h,x3)->prerksolve(r
ksetup(x,y,f,h),x3);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%(rksolveGf*6
'%\"xG%\"yG%\"fG%\"hG%#x3G6\"6$%)operatorG%&arrowGF,-%+prerksolveG6$-%
(rksetupG6&9$9%9&9'9(F,F,F," }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 
30 "rksolve(0,0,(x,y)->5-y,.01,1);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6(
\"\"!F#$\"\"\"!\"#$\"\"&F&f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF-,&F(
F%9%!\"\"F-F-F-F$" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"\"\"!\"#$\"+++
+v\\!#6$\"\"#F%$\"+++DD**F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&
\"\"&F$9%!\"\"F1F1F1F#" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"\"#!\"#$
\"+]()\\+**!#6$\"\"$F%$\"+w$\\,[\"!#5f*6$%\"xG%\"yG6\"6$%)operatorG%&a
rrowGF2,&\"\"&\"\"\"9%!\"\"F2F2F2$F8F%" }}{PARA 11 "" 1 "" {XPPMATH 
20 "6($\"\"$!\"#$\"+z))px9!#5$\"\"%F%$\"+!*=#H'>F(f*6$%\"xG%\"yG6\"6$%
)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "
" {XPPMATH 20 "6($\"\"%!\"#$\"+vd\\g>!#5$\"\"&F%$\"+<3*3W#F(f*6$%\"xG%
\"yG6\"6$%)operatorG%&arrowGF1,&F*\"\"\"9%!\"\"F1F1F1$F6F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6($\"\"&!\"#$\"+U))[QC!#5$\"\"'F%$\"+aR59HF(f*
6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&F$\"\"\"9%!\"\"F1F1F1$F6F%" }}
{PARA 11 "" 1 "" {XPPMATH 20 "6($\"\"'!\"#$\"+yes6H!#5$\"\"(F%$\"+>'3E
Q$F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1
$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"\"(!\"#$\"+1UD!Q$!#5$\"\")
F%$\"+k;XYQF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!
\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"\")!\"#$\"+x17WQ
!#5$\"\"*F%$\"+q%zcI%F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&
\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"\"*!\"#
$\"+w;P.V!#5$\"#5F%$\"+fzLgZF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1
,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"
#5!\"#$\"+GJ0eZ!#5$\"#6F%$\"+(fs/@&F(f*6$%\"xG%\"yG6\"6$%)operatorG%&a
rrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 
20 "6($\"#6!\"#$\"+*\\5#3_!#5$\"#7F%$\"+%RGhl&F(f*6$%\"xG%\"yG6\"6$%)o
peratorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6($\"#7!\"#$\"+0)))Ql&!#5$\"#8F%$\"+<*\\t4'F(f*6$%\"xG%\"
yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6($\"#8!\"#$\"+6E8&4'!#5$\"#9F%$\"+&G\"=MlF(f*
6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%
" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#9!\"#$\"+Ug)>`'!#5$\"#:F%$\"+#
=mm'pF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F
1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#:!\"#$\"+\"y#\\kp!#5$
\"#;F%$\"+`y%[R(F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"
\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#;!\"#$\"+y
gp#R(!#5$\"#<F%$\"+<\"p(=yF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&
\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#<
!\"#$\"+_(Qm\"y!#5$\"#=F%$\"+kBZQ#)F(f*6$%\"xG%\"yG6\"6$%)operatorG%&a
rrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 
20 "6($\"#=!\"#$\"+'>jjB)!#5$\"#>F%$\"+k&**Rl)F(f*6$%\"xG%\"yG6\"6$%)o
peratorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6($\"#>!\"#$\"+#Q6>l)!#5$\"#?F%$\"+oARl!*F(f*6$%\"xG%\"yG
6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 
"" 1 "" {XPPMATH 20 "6($\"#?!\"#$\"+k[Kj!*!#5$\"#@F%$\"+:;ps%*F(f*6$%
\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}
{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#@!\"#$\"+#yW1Z*!#5$\"#AF%$\"+M$Qf(
)*F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1
$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#A!\"#$\"+m=\"R()*!#5$\"#B
F%$\"+vs^F5!\"*f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF2,&\"\"&\"\"\"9%
!\"\"F2F2F2$F8F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#B!\"#$\"+WmJF5
!\"*$\"#CF%$\"+yM/n5F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&
\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#C!\"#$
\"+V[%o1\"!\"*$\"#DF%$\"+&Rwh5\"F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arro
wGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6
($\"#D!\"#$\"+P(zf5\"!\"*$\"#EF%$\"+S*>\\9\"F(f*6$%\"xG%\"yG6\"6$%)ope
ratorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6($\"#E!\"#$\"+R_sW6!\"*$\"#FF%$\"+()zF$=\"F(f*6$%\"xG%\"
yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6($\"#F!\"#$\"+B_3$=\"!\"*$\"#GF%$\"+rVD@7F(f*
6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%
" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#G!\"#$\"+DN1@7!\"*$\"#HF%$\"+!
*G&)e7F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1
F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#H!\"#$\"+VRme7!\"*$\"
#IF%$\"+/t2'H\"F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"
9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#I!\"#$\"+P-*
eH\"!\"*$\"#JF%$\"+N8$HL\"F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&
\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#J
!\"#$\"+HhuK8!\"*$\"#KF%$\"+o'=%p8F(f*6$%\"xG%\"yG6\"6$%)operatorG%&ar
rowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 
"6($\"#K!\"#$\"+0`Bp8!\"*$\"#LF%$\"+_Ha09F(f*6$%\"xG%\"yG6\"6$%)operat
orG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6($\"#L!\"#$\"+99O09!\"*$\"#MF%$\"++yIT9F(f*6$%\"xG%\"yG6
\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "
" 1 "" {XPPMATH 20 "6($\"#M!\"#$\"+o!G6W\"!\"*$\"#NF%$\"+(y;nZ\"F(f*6$
%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }
}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#N!\"#$\"+W)QlZ\"!\"*$\"#OF%$\"+cM
x6:F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F
1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#O!\"#$\"+#G(f6:!\"*$\"#P
F%$\"+48[Y:F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!
\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#P!\"#$\"+*)oIY:
!\"*$\"#QF%$\"+?Q%3e\"F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"
&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#Q!\"#
$\"+N6n!e\"!\"*$\"#RF%$\"+CW'[h\"F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arr
owGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "
6($\"#R!\"#$\"+dMp9;!\"*$\"#SF%$\"+Ala[;F(f*6$%\"xG%\"yG6\"6$%)operato
rG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6($\"#S!\"#$\"+dsP[;!\"*$\"#TF%$\"+%[$*=o\"F(f*6$%\"xG%\"
yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6($\"#T!\"#$\"+.fs\"o\"!\"*$\"#UF%$\"+W'3\\r\"
F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F
7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#U!\"#$\"+IFu9<!\"*$\"#VF%$
\"+.`fZ<F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"
F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#V!\"#$\"+S5VZ<!\"*$
\"#WF%$\"+In&*z<F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"
\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#W!\"#$\"+,
Tzz<!\"*$\"#XF%$\"+gh*>\"=F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&
\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#X
!\"#$\"+]^$=\"=!\"*$\"#YF%$\"+)z;P%=F(f*6$%\"xG%\"yG6\"6$%)operatorG%&
arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 
20 "6($\"#Y!\"#$\"+!RdN%=!\"*$\"#ZF%$\"+;=7v=F(f*6$%\"xG%\"yG6\"6$%)op
eratorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6($\"#Z!\"#$\"+%*R'\\(=!\"*$\"#[F%$\"+aV@1>F(f*6$%\"xG%\"
yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6($\"#[!\"#$\"+-\"eg!>!\"*$\"#\\F%$\"+@v*p$>F(
f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F
%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#\\!\"#$\"+CG%o$>!\"*$\"#]F%$
\"+'Ruu'>F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"
\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#]!\"#$\"+Q7Kn>!\"
*$\"#^F%$\"+E![w*>F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"
\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#^!\"#$\"
+#R'\\(*>!\"*$\"#_F%$\"+G9_F?F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF
1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($
\"#_!\"#$\"+.8PF?!\"*$\"#`F%$\"+!f(4d?F(f*6$%\"xG%\"yG6\"6$%)operatorG
%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6($\"#`!\"#$\"+f*[p0#!\"*$\"#aF%$\"+p%zj3#F(f*6$%\"xG%\"y
G6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6($\"#a!\"#$\"+<BB'3#!\"*$\"#bF%$\"+%**p`6#F(f
*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%
" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#b!\"#$\"+0VA:@!\"*$\"#cF%$\"+i
?2W@F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1
F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#c!\"#$\"+By#R9#!\"*$\"#
dF%$\"+X&)[s@F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%
!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#d!\"#$\"+TdMs@
!\"*$\"#eF%$\"+%GA1?#F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&
\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#e!\"#$
\"+,4[+A!\"*$\"#fF%$\"+#4w%GAF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF
1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($
\"#f!\"#$\"+;hLGA!\"*$\"#gF%$\"+bF0cAF(f*6$%\"xG%\"yG6\"6$%)operatorG%
&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 
20 "6($\"#g!\"#$\"+sT\"fD#!\"*$\"#hF%$\"+I]N$G#F(f*6$%\"xG%\"yG6\"6$%)
operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "
" {XPPMATH 20 "6($\"#h!\"#$\"+Ey@$G#!\"*$\"#iF%$\"+[cQ5BF(f*6$%\"xG%\"
yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6($\"#i!\"#$\"+4)\\-J#!\"*$\"#jF%$\"+6t9PBF(f*
6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%
" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#j!\"#$\"+BG,PB!\"*$\"#kF%$\"+&
pUOO#F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F
1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#k!\"#$\"+X&4NO#!\"*$\"
#lF%$\"+]W()*Q#F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"
9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#l!\"#$\"+DEu
*Q#!\"*$\"#mF%$\"+*>XeT#F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"
\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#m!
\"#$\"+'o9dT#!\"*$\"#nF%$\"+RvbTCF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arr
owGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "
6($\"#n!\"#$\"+D$G9W#!\"*$\"#oF%$\"+US,nCF(f*6$%\"xG%\"yG6\"6$%)operat
orG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6($\"#o!\"#$\"+8h)oY#!\"*$\"#pF%$\"+_s@#\\#F(f*6$%\"xG%\"
yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6($\"#p!\"#$\"+'f!4#\\#!\"*$\"#qF%$\"+!ppr^#F(
f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F
%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#q!\"#$\"+&HWq^#!\"*$\"#rF%$\"
+_Q(=a#F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F
1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#r!\"#$\"+/(\\<a#!\"*
$\"#sF%$\"+2ALmDF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"
\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#s!\"#$\"+%
H4ic#!\"*$\"#tF%$\"+,sa!f#F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&
\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#t
!\"#$\"+7bU!f#!\"*$\"#uF%$\"+d7_9EF(f*6$%\"xG%\"yG6\"6$%)operatorG%&ar
rowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 
"6($\"#u!\"#$\"+y2S9E!\"*$\"#vF%$\"+qnDQEF(f*6$%\"xG%\"yG6\"6$%)operat
orG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6($\"#v!\"#$\"+!\\P\"QE!\"*$\"#wF%$\"+:hvhEF(f*6$%\"xG%\"
yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6($\"#w!\"#$\"+A!Q;m#!\"*$\"#xF%$\"+U;-&o#F(f*
6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%
" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#x!\"#$\"+CZ!\\o#!\"*$\"#yF%$\"
+xc03FF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1
F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#y!\"#$\"+A*Rzq#!\"*$
\"#zF%$\"+B0'3t#F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"
\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#z!\"#$\"+?
fuIF!\"*$\"#!)F%$\"+h%QMv#F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&
\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#!
)!\"#$\"+)*\\K`F!\"*$\"#\")F%$\"+[<zvFF(f*6$%\"xG%\"yG6\"6$%)operatorG
%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6($\"#\")!\"#$\"+9%zcx#!\"*$\"##)F%$\"+?E#zz#F(f*6$%\"xG%
\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}
{PARA 11 "" 1 "" {XPPMATH 20 "6($\"##)!\"#$\"+/9\"yz#!\"*$\"#$)F%$\"+!
HL)>GF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F
1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#$)!\"#$\"+\"=B(>G!\"*$
\"#%)F%$\"+\\f_TGF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"
\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#%)!\"#$\"+
NpTTG!\"*$\"#&)F%$\"+mF+jGF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&
\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#&
)!\"#$\"+O[*G'G!\"*$\"#')F%$\"+))eE%)GF(f*6$%\"xG%\"yG6\"6$%)operatorG
%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6($\"#')!\"#$\"+K!fT)G!\"*$\"#()F%$\"+UuJ0HF(f*6$%\"xG%\"
yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6($\"#()!\"#$\"+];@0H!\"*$\"#))F%$\"+M&fh#HF(f
*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%
" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#))!\"#$\"+%zag#H!\"*$\"#*)F%$
\"+YUzYHF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"
F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#*)!\"#$\"+\\0pYH!\"
*$\"#!*F%$\"+WOAnHF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"
\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#!*!\"#$
\"+y47nH!\"*$\"#\"*F%$\"+o(\\u)HF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arro
wGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6
($\"#\"*!\"#$\"+C\"[t)H!\"*$\"##*F%$\"+VYZ2IF(f*6$%\"xG%\"yG6\"6$%)ope
ratorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6($\"##*!\"#$\"+5SP2I!\"*$\"#$*F%$\"+q-IFIF(f*6$%\"xG%\"y
G6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6($\"#$*!\"#$\"+R1?FI!\"*$\"#%*F%$\"+L'Gp/$F(f
*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%
" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#%*!\"#$\"+$**Ho/$!\"*$\"#&*F%$
\"+$phj1$F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"
\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#&*!\"#$\"+NSEmI!
\"*$\"#'*F%$\"+&R,c3$F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&
\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#'*!\"#
$\"+3Z]&3$!\"*$\"#(*F%$\"+h'\\Y5$F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arr
owGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "
6($\"#(*!\"#$\"+ORb/J!\"*$\"#)*F%$\"+(R3N7$F(f*6$%\"xG%\"yG6\"6$%)oper
atorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6($\"#)*!\"#$\"+COTBJ!\"*$\"#**F%$\"+)[z@9$F(f*6$%\"xG%\"
yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6($\"#**!\"#$\"+ec3UJ!\"*$\"$+\"F%$\"+,[mgJF(f
*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&\"\"&\"\"\"9%!\"\"F1F1F1$F7F%
" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#$\"+1>dgJ!\"*" }}}{EXCHG {PARA 0 "
> " 0 "" {MPLTEXT 1 0 31 "rksolve(0,2,(x,y)->x+y,.01,.3);" }}{PARA 11 
"" 1 "" {XPPMATH 20 "6(\"\"!\"\"#$\"\"\"!\"#$\"$-#F'f*6$%\"xG%\"yG6\"6
$%)operatorG%&arrowGF.,&9$F&9%F&F.F.F.F%" }}{PARA 11 "" 1 "" {XPPMATH 
20 "6($\"\"\"!\"#$\"+++:??!\"*$\"\"#F%$\"++:XS?F(f*6$%\"xG%\"yG6\"6$%)
operatorG%&arrowGF1,&9$F$9%F$F1F1F1F#" }}{PARA 11 "" 1 "" {XPPMATH 20 
"6($\"\"#!\"#$\"+3IgS?!\"*$\"\"$F%$\"+Q!471#F(f*6$%\"xG%\"yG6\"6$%)ope
ratorG%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6($\"\"$!\"#$\"+o?Oh?!\"*$\"\"%F%$\"+*ovA3#F(f*6$%\"xG%\"
yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7F%" }}{PARA 11 "" 
1 "" {XPPMATH 20 "6($\"\"%!\"#$\"+d-V#3#!\"*$\"\"&F%$\"+gXl.@F(f*6$%\"
xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6($\"\"&!\"#$\"+\"o5Q5#!\"*$\"\"'F%$\"+)y[`7#F
(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7F%" }}
{PARA 11 "" 1 "" {XPPMATH 20 "6($\"\"'!\"#$\"+yk]D@!\"*$\"\"(F%$\"+V:O
Z@F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7F%
" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"\"(!\"#$\"+=3_Z@!\"*$\"\")F%$\"
+Egpp@F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F
7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"\")!\"#$\"+-p&)p@!\"*$\"\"*F
%$\"+raN#>#F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F1F
1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"\"*!\"#$\"+kz^#>#!\"*$
\"#5F%$\"+WJM:AF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F
7F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#5!\"#$\"+qs]:A!\"*
$\"#6F%$\"+VBmQAF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%
F7F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#6!\"#$\"+=\"G)QA!
\"*$\"#7F%$\"+*R;BE#F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"
\"9%F7F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#7!\"#$\"+TQ[i
A!\"*$\"#8F%$\"+z'3jG#F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"
\"\"9%F7F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#8!\"#$\"+/y
Z'G#!\"*$\"#9F%$\"+#eU1J#F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9
$\"\"\"9%F7F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#9!\"#$\"
+1M\"3J#!\"*$\"#:F%$\"+S:KNBF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1
,&9$\"\"\"9%F7F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#:!\"#
$\"+\"3%\\NB!\"*$\"#;F%$\"+A!\\.O#F(f*6$%\"xG%\"yG6\"6$%)operatorG%&ar
rowGF1,&9$\"\"\"9%F7F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"
#;!\"#$\"+(HB0O#!\"*$\"#<F%$\"+I&GdQ#F(f*6$%\"xG%\"yG6\"6$%)operatorG%
&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6(
$\"#<!\"#$\"+cX!fQ#!\"*$\"#=F%$\"+-OY6CF(f*6$%\"xG%\"yG6\"6$%)operator
G%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "
6($\"#=!\"#$\"+(RT;T#!\"*$\"#>F%$\"+6ybPCF(f*6$%\"xG%\"yG6\"6$%)operat
orG%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 
20 "6($\"#>!\"#$\"+$RPxV#!\"*$\"#?F%$\"+nZ,kCF(f*6$%\"xG%\"yG6\"6$%)op
eratorG%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7F%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6($\"#?!\"#$\"+ah>kC!\"*$\"#@F%$\"+;\"Q3\\#F(f*6$%\"xG%\"
yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7F%" }}{PARA 11 "" 
1 "" {XPPMATH 20 "6($\"#@!\"#$\"+D8-\"\\#!\"*$\"#AF%$\"+Q:.=DF(f*6$%\"
xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7F%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6($\"#A!\"#$\"+*e;#=D!\"*$\"#BF%$\"+b()fXDF(f*
6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7F%" }}
{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#B!\"#$\"+mcyXD!\"*$\"#CF%$\"+BNatD
F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7F%" }
}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#C!\"#$\"+7BttD!\"*$\"#DF%$\"+N'p=
g#F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7F%
" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#D!\"#$\"+A.1-E!\"*$\"#EF%$\"+D
4eIEF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7F
%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#E!\"#$\"+GNxIE!\"*$\"#FF%$\"+
j7ofEF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F1F1F1$F7
F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#F!\"#$\"+-e()fE!\"*$\"#GF%$
\"+gX<*o#F(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F1F1F
1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#G!\"#$\"+a5P*o#!\"*$\"#H
F%$\"+lZ1>FF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F1F
1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6($\"#H!\"#$\"+LKE>F!\"*$\"#
IF%$\"+leN\\FF(f*6$%\"xG%\"yG6\"6$%)operatorG%&arrowGF1,&9$\"\"\"9%F7F
1F1F1$F7F%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#$\"+Gjb\\F!\"*" }}}
{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 32 "dsolve(\{D(y)(t)=y(t)+t,y(0)
=2\});" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#/-%\"yG6#%\"tG,(F'!\"\"\"\"
\"F)*&\"\"$F*-%$expGF&F*F*" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 
23 "evalf(-.3-1+3*exp(.3));" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#$\"+Ckd
\\F!\"*" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 0 "" }}}{EXCHG 
{PARA 0 "> " 0 "" {MPLTEXT 1 0 26 "# fourth order Runge Kutta" }}}
{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 49 "s1:=(stepsize,tvalue,xvalue,
f)->f(tvalue,xvalue);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%#s1Gf*6&%)s
tepsizeG%'tvalueG%'xvalueG%\"fG6\"6$%)operatorG%&arrowGF+-9'6$9%9&F+F+
F+" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 90 "s2:=(stepsize,tvalue,
xvalue,f)->f(tvalue+stepsize/2,xvalue+(stepsize/2)*f(tvalue,xvalue));
" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%#s2Gf*6&%)stepsizeG%'tvalueG%'xv
alueG%\"fG6\"6$%)operatorG%&arrowGF+-9'6$,&9%\"\"\"*&#F4\"\"#F49$F4F4,
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