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*(\"&)G7F,FAF,FjnF,F(*(F8F,FVF,)F.\"#5F,F,*&\"'+WhF,F`oF,F,*(\"'_RDF,F
AF,F`oF,F,*(\"'#*H@F,FAF,)F.\"\"*F,F(*&\"'C%***F,FhoF,F(*(F^oF,FVF,Fho
F,F,*(\"''HR%F,FAF,)F.\"\")F,F(*(\"&/*fF,FVF,F_pF,F(*&\"'%yu$F,F_pF,F(
*(F@F,)FA\"\"$F,F_pF,F,*(FGF,FfpF,)F.\"\"(F,F(*&\"(+)G7F,FipF,F,*(\"'?
jpF,FAF,FipF,F,*(\"&ko$F,FVF,FipF,F,*&\"&7,*F,)F.\"\"'F,F(*(\"%?^F,Ffp
F,FcqF,F,*(\"'C!H\"F,FVF,FcqF,F,*(\"'7D>F,FAF,FcqF,F,*(\"'KkyF,FAF,)F.
\"\"&F,F(*&F\\rF,F]rF,F(*(\"'3m>F,FVF,F]rF,F(*(F+F,)FAF'F,)F.F'F,F,*(
\"&o*>F,FfpF,FdrF,F(*(\"&SI#F,FVF,FdrF,F(*&\"'+/BF,FdrF,F,*(\"'/&\\\"F
,FAF,FdrF,F,*(\"&s'GF,FfpF,)F.FgpF,F,*(\"'KoPF,FAF,F_sF,F,*(\"'?V=F,FV
F,F_sF,F,*&FeoF,F_sF,F,*(F1F,FcrF,F_sF,F(*(\"%O:F,FcrF,)F.FWF,F,*(\"%'
4%F,FfpF,FhsF,F(*(\"&S9'F,FVF,FhsF,F(*&\"''\\1\"F,FhsF,F(*(\"'cu9F,FAF
,FhsF,F(*(FGF,FcrF,F.F,F(*(FSF,FfpF,F.F,F(*(\"&Ob'F,FAF,F.F,F(*(\"&_\"
\\F,FVF,F.F,F(*&FOF,F.F,F(FSF,*&\"%#>)F,FfpF,F,*&FOF,FAF,F,*&\"%C5F,Fc
rF,F,*&\"&wX#F,FVF,F,F,%\"yG!\"%F(" }}}{EXCHG {PARA 0 "> " 0 "" 
{MPLTEXT 1 0 15 "d2:=sort(d2,x);" }}{PARA 12 "" 1 "" {XPPMATH 20 "6#>%
#d2G,$*(\"\"%!\"\",\\s*&\"#k\"\"\")%\"xG\"#?F,F,*&\"$7&F,)F.\"#>F,F(*&
F1F,)F.\"#=F,F,*&\"%WhF,)F.\"#<F,F,*&\"&'*o\"F,)F.\"#;F,F(*(\"$c#F,%\"
cGF,F=F,F,*&\"&![?F,)F.\"#:F,F(*(\"%[?F,FAF,FDF,F(*(\"%sIF,FAF,)F.\"#9
F,F,*&\"'K37F,FJF,F,*&\"&oF$F,)F.\"#8F,F(*(\"&%Q;F,FAF,FPF,F,*(\"$%QF,
)FA\"\"#F,)F.\"#7F,F,*(\"&3e&F,FAF,FXF,F(*&\"'!o\"RF,FXF,F(*&\"'G4QF,)
F.\"#6F,F,*(FIF,FVF,FjnF,F(*(\"&)G7F,FAF,FjnF,F(*(F8F,FVF,)F.\"#5F,F,*
&\"'+WhF,F`oF,F,*(\"'_RDF,FAF,F`oF,F,*(\"'#*H@F,FAF,)F.\"\"*F,F(*&\"'C
%***F,FhoF,F(*(F^oF,FVF,FhoF,F,*(\"''HR%F,FAF,)F.\"\")F,F(*(\"&/*fF,FV
F,F_pF,F(*&\"'%yu$F,F_pF,F(*(F@F,)FA\"\"$F,F_pF,F,*(FGF,FfpF,)F.\"\"(F
,F(*&\"(+)G7F,FipF,F,*(\"'?jpF,FAF,FipF,F,*(\"&ko$F,FVF,FipF,F,*&\"&7,
*F,)F.\"\"'F,F(*(\"%?^F,FfpF,FcqF,F,*(\"'C!H\"F,FVF,FcqF,F,*(\"'7D>F,F
AF,FcqF,F,*(\"'KkyF,FAF,)F.\"\"&F,F(*&F\\rF,F]rF,F(*(\"'3m>F,FVF,F]rF,
F(*(F+F,)FAF'F,)F.F'F,F,*(\"&o*>F,FfpF,FdrF,F(*(\"&SI#F,FVF,FdrF,F(*&
\"'+/BF,FdrF,F,*(\"'/&\\\"F,FAF,FdrF,F,*(\"&s'GF,FfpF,)F.FgpF,F,*(\"'K
oPF,FAF,F_sF,F,*(\"'?V=F,FVF,F_sF,F,*&FeoF,F_sF,F,*(F1F,FcrF,F_sF,F(*(
\"%O:F,FcrF,)F.FWF,F,*(\"%'4%F,FfpF,FhsF,F(*(\"&S9'F,FVF,FhsF,F(*&\"''
\\1\"F,FhsF,F(*(\"'cu9F,FAF,FhsF,F(*(FGF,FcrF,F.F,F(*(FSF,FfpF,F.F,F(*
(\"&Ob'F,FAF,F.F,F(*(\"&_\"\\F,FVF,F.F,F(*&FOF,F.F,F(FSF,*&\"%#>)F,Ffp
F,F,*&FOF,FAF,F,*&\"%C5F,FcrF,F,*&\"&wX#F,FVF,F,F,%\"yG!\"%F(" }}}
{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 24 "d1:=coeff(delta[3],X,1);" }}
{PARA 12 "" 1 "" {XPPMATH 20 "6#>%#d1G,$*(\"\"%!\"\",fx*&\"$G\"\"\"\")
%\"xG\"#@F,F(*&\"%C5F,)F.\"#?F,F,*&F1F,)F.\"#>F,F(*&\"&)G7F,)F.\"#=F,F
(*&\"&#zLF,)F.\"#<F,F,*(\"$7&F,%\"cGF,F=F,F(*&\"&g4%F,)F.\"#;F,F,*(\"#
&*F,)%\"yG\"\"#F,FDF,F,*(\"%'4%F,FAF,FDF,F,*&\"'k;CF,)F.\"#:F,F(*(\"$3
'F,FHF,FOF,F(*(\"%WhF,FAF,FOF,F(*&\"&Ob'F,)F.\"#9F,F,*(\"&oF$F,FAF,FWF
,F(*(\"$W\"F,FHF,FWF,F,*(\"';;6F,FAF,)F.\"#8F,F,*(\"%kkF,FHF,FinF,F,*&
\"'gLyF,FinF,F,*(\"$o(F,)FAFJF,FinF,F(*&\"'c=wF,)F.\"#7F,F(*(\"%g**F,F
HF,FdoF,F(*(FTF,FaoF,FdoF,F,*(\"&wX#F,FAF,FdoF,F,**\"#gF,FAF,FHF,FdoF,
F,*&\"(+)G7F,)F.\"#6F,F(*(\"&)oEF,FHF,F_pF,F(**\"#'*F,FAF,FHF,F_pF,F,*
(F8F,FaoF,F_pF,F(*(\"'/z]F,FAF,F_pF,F(*(\"'%)fUF,FAF,)F.\"#5F,F,**\"%3
MF,FAF,FHF,FjpF,F(*(FjoF,FaoF,FjpF,F(*(\"&S-(F,FHF,FjpF,F,*&\"([))*>F,
FjpF,F,*(\"&;_#F,FHF,)F.\"\"*F,F,*(\"'3)>\"F,FaoF,FeqF,F,**\"&s5\"F,FA
F,FHF,FeqF,F,*&\"'o&\\(F,FeqF,F,*(\"'#fy)F,FAF,FeqF,F,*(F@F,)FA\"\"$F,
FeqF,F(*(\"'C?>F,FHF,)F.\"\")F,F(*(\"&GP(F,FaoF,FdrF,F(**\"$_&F,FAF,FH
F,FdrF,F,**\"#!*F,FaoF,FHF,FdrF,F,*&\"(+wX#F,FdrF,F(*(FLF,F`rF,FdrF,F,
*(\"(SER\"F,FAF,FdrF,F(**\"&?&fF,FAF,FHF,)F.\"\"(F,F(**\"$![F,FaoF,FHF
,FcsF,F,*(\"'C]QF,FAF,FcsF,F(*&\"'C-=F,FcsF,F,*(\"'?V5F,FHF,FcsF,F,*(
\"&S-\"F,F`rF,FcsF,F(*(\"'[!e#F,FaoF,FcsF,F(*(\"';KRF,FaoF,)F.\"\"'F,F
,*(\"'GD9F,FHF,FctF,F,**\"&S#)*F,FAF,FHF,FctF,F,*(\"(kGd\"F,FAF,FctF,F
,*&FjtF,FctF,F,**\"%#*pF,FaoF,FHF,FctF,F(*(\"&O*RF,F`rF,)F.\"\"&F,F,*(
\"'3!*HF,FAF,F`uF,F(*(\"'+W8F,FHF,F`uF,F(*(F+F,)FAF'F,F`uF,F(**\"&KK#F
,FaoF,FHF,F`uF,F,**\"&O2#F,FAF,FHF,F`uF,F(*(\"&!3YF,FaoF,F`uF,F,*&\"'+
3YF,F`uF,F(**\"$!QF,F`rF,FHF,)F.F'F,F,*(\"'kOvF,FAF,FbvF,F(*&FgpF,FbvF
,F(*(\"&wd\"F,FHF,FbvF,F(*(\"'S'o$F,FaoF,FbvF,F(**\"&s+$F,FaoF,FHF,Fbv
F,F(**\"&_&pF,FAF,FHF,FbvF,F(*(F1F,FguF,FbvF,F,*(\"&Wt&F,F`rF,FbvF,F(*
(\"'!)G7F,FaoF,)F.FarF,F,**\"&'HRF,FAF,FHF,FcwF,F,*&\"'#*H@F,FcwF,F,**
\"%sAF,F`rF,FHF,FcwF,F(*(\"%#>)F,F`rF,FcwF,F,*(\"%sIF,FguF,FcwF,F(*(\"
&+?$F,FHF,FcwF,F,**\"%/rF,FaoF,FHF,FcwF,F,*(\"'7\\HF,FAF,FcwF,F,*(FZF,
F`rF,)F.FJF,F,**\"%syF,FAF,FHF,FexF,F,*(\"'s58F,FAF,FexF,F,*&FVF,FexF,
F,**\"%_ZF,F`rF,FHF,FexF,F,*(\"&/$)*F,FaoF,FexF,F,*(FLF,FguF,FexF,F,**
\"&Ci\"F,FaoF,FHF,FexF,F,*(\"&O6\"F,FHF,FexF,F(**FcyF,FaoF,FHF,F.F,F(*
(\"&?z\"F,FHF,F.F,F,**\"%/BF,FAF,FHF,F.F,F,*&FZF,F.F,F(*(FVF,FAF,F.F,F
(*(\"&%Q;F,F`rF,F.F,F(**\"%/RF,F`rF,FHF,F.F,F(*(\"&_\"\\F,FaoF,F.F,F(*
(\"%[?F,FguF,F.F,F(*&\"%K#*F,FHF,F(*(\"%kcF,FAF,FHF,F(*&FguF,FHF,F(*(
\"%c7F,FaoF,FHF,F,*(\"$)))F,F`rF,FHF,F,F,FI!\"%F(" }}}{EXCHG {PARA 0 "
> " 0 "" {MPLTEXT 1 0 15 "d1:=sort(d1,x);" }}{PARA 12 "" 1 "" 
{XPPMATH 20 "6#>%#d1G,$*(\"\"%!\"\",fx*&\"$G\"\"\"\")%\"xG\"#@F,F(*&\"
%C5F,)F.\"#?F,F,*&F1F,)F.\"#>F,F(*&\"&)G7F,)F.\"#=F,F(*&\"&#zLF,)F.\"#
<F,F,*(\"$7&F,%\"cGF,F=F,F(*&\"&g4%F,)F.\"#;F,F,*(\"#&*F,)%\"yG\"\"#F,
FDF,F,*(\"%'4%F,FAF,FDF,F,*&\"'k;CF,)F.\"#:F,F(*(\"$3'F,FHF,FOF,F(*(\"
%WhF,FAF,FOF,F(*&\"&Ob'F,)F.\"#9F,F,*(\"&oF$F,FAF,FWF,F(*(\"$W\"F,FHF,
FWF,F,*(\"';;6F,FAF,)F.\"#8F,F,*(\"%kkF,FHF,FinF,F,*&\"'gLyF,FinF,F,*(
\"$o(F,)FAFJF,FinF,F(*&\"'c=wF,)F.\"#7F,F(*(\"%g**F,FHF,FdoF,F(*(FTF,F
aoF,FdoF,F,*(\"&wX#F,FAF,FdoF,F,**\"#gF,FAF,FHF,FdoF,F,*&\"(+)G7F,)F.
\"#6F,F(*(\"&)oEF,FHF,F_pF,F(**\"#'*F,FAF,FHF,F_pF,F,*(F8F,FaoF,F_pF,F
(*(\"'/z]F,FAF,F_pF,F(*(\"'%)fUF,FAF,)F.\"#5F,F,**\"%3MF,FAF,FHF,FjpF,
F(*(FjoF,FaoF,FjpF,F(*(\"&S-(F,FHF,FjpF,F,*&\"([))*>F,FjpF,F,*(\"&;_#F
,FHF,)F.\"\"*F,F,*(\"'3)>\"F,FaoF,FeqF,F,**\"&s5\"F,FAF,FHF,FeqF,F,*&
\"'o&\\(F,FeqF,F,*(\"'#fy)F,FAF,FeqF,F,*(F@F,)FA\"\"$F,FeqF,F(*(\"'C?>
F,FHF,)F.\"\")F,F(*(\"&GP(F,FaoF,FdrF,F(**\"$_&F,FAF,FHF,FdrF,F,**\"#!
*F,FaoF,FHF,FdrF,F,*&\"(+wX#F,FdrF,F(*(FLF,F`rF,FdrF,F,*(\"(SER\"F,FAF
,FdrF,F(**\"&?&fF,FAF,FHF,)F.\"\"(F,F(**\"$![F,FaoF,FHF,FcsF,F,*(\"'C]
QF,FAF,FcsF,F(*&\"'C-=F,FcsF,F,*(\"'?V5F,FHF,FcsF,F,*(\"&S-\"F,F`rF,Fc
sF,F(*(\"'[!e#F,FaoF,FcsF,F(*(\"';KRF,FaoF,)F.\"\"'F,F,*(\"'GD9F,FHF,F
ctF,F,**\"&S#)*F,FAF,FHF,FctF,F,*(\"(kGd\"F,FAF,FctF,F,*&FjtF,FctF,F,*
*\"%#*pF,FaoF,FHF,FctF,F(*(\"&O*RF,F`rF,)F.\"\"&F,F,*(\"'3!*HF,FAF,F`u
F,F(*(\"'+W8F,FHF,F`uF,F(*(F+F,)FAF'F,F`uF,F(**\"&KK#F,FaoF,FHF,F`uF,F
,**\"&O2#F,FAF,FHF,F`uF,F(*(\"&!3YF,FaoF,F`uF,F,*&\"'+3YF,F`uF,F(**\"$
!QF,F`rF,FHF,)F.F'F,F,*(\"'kOvF,FAF,FbvF,F(*&FgpF,FbvF,F(*(\"&wd\"F,FH
F,FbvF,F(*(\"'S'o$F,FaoF,FbvF,F(**\"&s+$F,FaoF,FHF,FbvF,F(**\"&_&pF,FA
F,FHF,FbvF,F(*(F1F,FguF,FbvF,F,*(\"&Wt&F,F`rF,FbvF,F(*(\"'!)G7F,FaoF,)
F.FarF,F,**\"&'HRF,FAF,FHF,FcwF,F,*&\"'#*H@F,FcwF,F,**\"%sAF,F`rF,FHF,
FcwF,F(*(\"%#>)F,F`rF,FcwF,F,*(\"%sIF,FguF,FcwF,F(*(\"&+?$F,FHF,FcwF,F
,**\"%/rF,FaoF,FHF,FcwF,F,*(\"'7\\HF,FAF,FcwF,F,*(FZF,F`rF,)F.FJF,F,**
\"%syF,FAF,FHF,FexF,F,*(\"'s58F,FAF,FexF,F,*&FVF,FexF,F,**\"%_ZF,F`rF,
FHF,FexF,F,*(\"&/$)*F,FaoF,FexF,F,*(FLF,FguF,FexF,F,**\"&Ci\"F,FaoF,FH
F,FexF,F,*(\"&O6\"F,FHF,FexF,F(**FcyF,FaoF,FHF,F.F,F(*(\"&?z\"F,FHF,F.
F,F,**\"%/BF,FAF,FHF,F.F,F,*&FZF,F.F,F(*(FVF,FAF,F.F,F(*(\"&%Q;F,F`rF,
F.F,F(**\"%/RF,F`rF,FHF,F.F,F(*(\"&_\"\\F,FaoF,F.F,F(*(\"%[?F,FguF,F.F
,F(*&\"%K#*F,FHF,F(*(\"%kcF,FAF,FHF,F(*&FguF,FHF,F(*(\"%c7F,FaoF,FHF,F
,*(\"$)))F,F`rF,FHF,F,F,FI!\"%F(" }}}{EXCHG {PARA 0 "> " 0 "" 
{MPLTEXT 1 0 24 "d0:=coeff(delta[3],X,0);" }}{PARA 12 "" 1 "" 
{XPPMATH 20 "6#>%#d0G,$*(\"\"%!\"\",^\\l*(\"'#*H@\"\"\"%\"cGF,)%\"xG\"
#6F,F(*(\"&;_#F,)%\"yG\"\"#F,)F/\"#5F,F(*(\"''HR%F,F-F,F6F,F(*(\"'C?>F
,F3F,)F/\"\"*F,F,*&\"%%)>F,)F4F'F,F(*(\"&SI#F,)F-F5F,)F/\"\"'F,F(**\"$
!QF,)F/\"\"&F,)F-\"\"$F,F3F,F(*&\"''\\1\"F,)F/F'F,F(*&\"&oF$F,)F/FKF,F
(*&\"&%Q;F,)F/F5F,F,*&\"'+/BF,FDF,F,*&\"'KkyF,)F/\"\"(F,F(*&\"&7,*F,)F
/\"\")F,F(*&\"'_RDF,FHF,F,*&\"'%yu$F,F6F,F(*&\"(+)G7F,F<F,F,*&\"'C%***
F,F.F,F(*&\"'+WhF,)F/\"#7F,F,*(\"'cu9F,F-F,FNF,F(*(\"&Ob'F,F-F,FQF,F(*
(FPF,F-F,FTF,F,*(\"'/&\\\"F,F-F,FDF,F,*(\"'KoPF,F-F,FHF,F,*(\"&wX#F,FC
F,FTF,F,*(FXF,F-F,FYF,F(*(\"&_\"\\F,FCF,FQF,F(*(\"'7D>F,F-F,FgnF,F,*(
\"&S9'F,FCF,FNF,F(**\"#!*F,F<F,FCF,F3F,F(*&\"'G4QF,)F/\"#8F,F,*&\"'!o
\"RF,)F/\"#9F,F(*&FPF,)F/\"#:F,F(*&\"'K37F,)F/\"#;F,F,*&\"&![?F,)F/\"#
<F,F(*&\"&'*o\"F,)F/\"#=F,F(*&\"%WhF,)F/\"#>F,F,*&\"$7&F,)F/\"#?F,F,*(
\"'?V=F,FCF,FHF,F,*(\"'3m>F,FCF,FYF,F(*(\"%G(*F,F/F,F@F,F,*(\"%_>F,F-F
,F@F,F(*(\"%g(*F,FNF,F@F,F(*(\"%!G\"F,FQF,F@F,F,*(\"%gdF,FTF,F@F,F(*(
\"$k%F,FCF,F@F,F(*(\"&sE\"F,FDF,F@F,F,*(\"%g*)F,FYF,F@F,F(*(\"$?(F,Fgn
F,F@F,F(*(\"%gDF,FHF,F@F,F,*(\"$g\"F,F6F,F@F,F(*(\"%?>F,F<F,F@F,F,*(\"
$#>F,F.F,F@F,F(*(\"#SF,FcoF,F@F,F,*(FhnF,FJF,F@F,F,*(\"%#>)F,FJF,FTF,F
,**\"%+SF,FNF,F-F,F@F,F(**\"%SQF,FQF,F-F,F@F,F(**\"%![%F,FTF,F-F,F@F,F
,**\"%OJF,FDF,F-F,F@F,F(**\"%+kF,FHF,F-F,F@F,F,**\"%!o$F,FTF,FCF,F@F,F
,**\"%k;F,F/F,FCF,F@F,F(**\"$S'F,FYF,F-F,F@F,F,**\"%SAF,FQF,FCF,F@F,F(
**FgtF,FgnF,F-F,F@F,F(**\"$S%F,FNF,FCF,F@F,F,**\"%O:F,F/F,F-F,F@F,F,*(
\"'?jpF,F-F,F<F,F,*(\"&ko$F,FCF,F<F,F,*(\"'C!H\"F,FCF,FgnF,F,*(FSF,FJF
,FQF,F(*(FjnF,F-F,FcoF,F,*(\"&)G7F,F-F,F[qF,F(*(\"%[?F,F-F,FjqF,F(*(\"
$c#F,F^rF,F-F,F,*(\"$%QF,F_qF,FCF,F,*(\"%?^F,FJF,FgnF,F,*(FSF,F-F,FbqF
,F,*(\"%sIF,F-F,FfqF,F,*(FarF,FCF,FcoF,F,*(\"&o*>F,FJF,FDF,F(*(\"&/*fF
,FCF,F6F,F(*(FavF,)F-F'F,FNF,F,*(\"%'4%F,FJF,FNF,F(*&FerF,)F/\"#@F,F(*
&\"#kF,)F/\"#AF,F,*(FdxF,FDF,F]xF,F,*(F]wF,F]xF,FQF,F(*(\"%C5F,F]xF,FT
F,F,**\"#'*F,F-F,F3F,FcoF,F(**\"&O2#F,F-F,F3F,FDF,F,**\"$_&F,F-F,F3F,F
<F,F(**\"&KK#F,FCF,F3F,FDF,F(**\"%syF,F-F,F3F,FQF,F(**\"$)))F,FJF,F3F,
F/F,F(**\"&s+$F,FCF,F3F,FHF,F,**\"%/BF,F-F,F3F,FTF,F(**\"%sAF,FJF,F3F,
FNF,F,**\"&?&fF,F-F,F3F,FgnF,F,*(\"&3e&F,F-F,F_qF,F(*(FerF,F]xF,FHF,F(
*(\"&s'GF,FJF,FHF,F,*(F]wF,FJF,F<F,F(*(F]xF,F3F,F/F,F,*(\"%K#*F,F3F,F/
F,F,**\"#gF,F[qF,F-F,F3F,F(**\"&S#)*F,F-F,F3F,FYF,F(**\"&s5\"F,F-F,F3F
,F6F,F(**\"%3MF,F-F,F3F,F.F,F,**\"%#*pF,FCF,F3F,FYF,F,**\"$![F,FCF,F3F
,FgnF,F(**\"&'HRF,F-F,F3F,FNF,F(**\"%/RF,FJF,F3F,FTF,F,**\"&_&pF,F-F,F
3F,FHF,F,*(F[wF,FCF,F.F,F,*(FfwF,FCF,F[qF,F(*(F_wF,F6F,FJF,F,*(\"&?z\"
F,F3F,FTF,F(*(\"&S-(F,F3F,F.F,F(*(\"&)oEF,F3F,FcoF,F,*(\"%g**F,F3F,F[q
F,F,*(\"#&*F,FjqF,F3F,F(*(\"'GD9F,F3F,FYF,F(*(\"$3'F,F3F,FfqF,F,**\"%c
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