{VERSION 3 0 "IBM INTEL LINUX" "3.0" }
{USTYLETAB {CSTYLE "Maple Input" -1 0 "Courier" 0 1 255 0 0 1 0 1 0 0 
1 0 0 0 0 }{CSTYLE "2D Math" -1 2 "Times" 0 1 0 0 0 0 0 0 2 0 0 0 0 0 
0 }{CSTYLE "2D Output" 2 20 "" 0 1 0 0 255 1 0 0 0 0 0 0 0 0 0 }
{PSTYLE "Normal" -1 0 1 {CSTYLE "" -1 -1 "" 0 1 0 0 0 0 0 0 0 0 0 0 0 
0 0 }0 0 0 -1 -1 -1 0 0 0 0 0 0 -1 0 }{PSTYLE "Maple Output" 0 11 1 
{CSTYLE "" -1 -1 "" 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 }3 3 0 -1 -1 -1 0 0 
0 0 0 0 -1 0 }{PSTYLE "" 11 12 1 {CSTYLE "" -1 -1 "" 0 1 0 0 0 0 0 0 
0 0 0 0 0 0 0 }1 0 0 -1 -1 -1 0 0 0 0 0 0 -1 0 }{PSTYLE "Maple Plot" 
0 13 1 {CSTYLE "" -1 -1 "" 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 }3 0 0 -1 -1 
-1 0 0 0 0 0 0 -1 0 }}
{SECT 0 {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 102 "evalf(tanh(1),4);ev
alf(tanh(2),4);evalf(tanh(3),4);evalf(tanh(4),4);evalf(tanh(5),4);eval
f(tanh(6),4);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#$\"%;w!\"%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6#$\"%S'*!\"%" }}{PARA 11 "" 1 "" {XPPMATH 20 
"6#$\"%^**!\"%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#$\"%$***!\"%" }}
{PARA 11 "" 1 "" {XPPMATH 20 "6#$\"%****!\"%" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6#$\"%+5!\"$" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 
133 "p(u):=interp([-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6],[-1,-0.9999,-0.999
3,-0.9951,-0.964,-0.7616,0,0.7616,0.964,0.9951,0.9993,0.9999,1], u);" 
}}{PARA 12 "" 1 "" {XPPMATH 20 "6#>-%\"pG6#%\"uG,:*$)F'\"#7\"\"\"$!+p`
0\\:!#C*$)F'\"#6F,$!+'e<))*R!#;*$)F'\"#5F,$\"$F\"!#:*$)F'\"\"*F,$\"+;H
ORP!#9*$)F'\"\")F,$!#I!#8*$)F'\"\"(F,$!+O)H_H\"!#7*$)F'\"\"'F,$\"#WFM*
$)F'\"\"&F,$\"+\"y)=4@!#6*$)F'\"\"%F,$!\"#FX*$)F'\"\"$F,$!+4r,X<!#5*$)
F'\"\"#F,$F`oF]oF'$\"+\"f!oi\"*F]o" }}}{EXCHG {PARA 0 "> " 0 "" 
{MPLTEXT 1 0 31 "plot([p(u),tanh(u)], u=-6..+6);" }}{PARA 13 "" 1 "" 
{INLPLOT "6&-%'CURVESG6$7ep7$$!\"'\"\"!$!0wEv!)*******!#:7$$!1++]P&3Y$
fF-$!1w\">W%R?q7F-7$$!1+++vq@peF-$!1s3QSV\\X9F-7$$!1++]7c#Q!eF-$!1Z%)o
'=8ka\"F-7$$!1+++]TVQdF-$!1z*oOH_-f\"F-7$$!1+D1pd)*4dF-$!1leG7tD&f\"F-
7$$!1**\\7)QP:o&F-$!1#>\"G![eKf\"F-7$$!1+v=2!*3`cF-$!1&)Q)R'p?&e\"F-7$
$!1++DE1kCcF-$!1P9nuY(>d\"F-7$$!1+]PkQunbF-$!1?'prH(3L:F-7$$!1++]-r%3^
&F-$!1Ih)f&4;#[\"F-7$$!1+++l;!\\D&F-$!1Vr5mD&y?\"F-7$$!1+++g13E^F-$!1s
)ello$)3\"F-7$$!1+++b'fs*\\F-$!1S2mG>:$)**!#;7$$!1**\\P%GbJ$\\F-$!1g')
*4'=F`'*Fio7$$!1++v840p[F-$!1V@*)HAg*R*Fio7$$!1+]7Vl%\\![F-$!1TAA:$Gu@
*Fio7$$!1++]s@%3u%F-$!1#Qll@^/5*Fio7$$!1+++:#49o%F-$!1B$fi$*QQ/*Fio7$$
!1++]di(>i%F-$!1Ov-4\")fI!*Fio7$$!1++++LaiXF-$!1Fu>tL<a!*Fio7$$!1++]U.
6.XF-$!1-m\")**G,3\"*Fio7$$!1++]s:.!Q%F-$!1!HM:'od)G*Fio7$$!1++]-G&pD%
F-$!1RRjnrA?&*Fio7$$!1++]AjP-SF-$!1b***\\C!H*)**Fio7$$!1++](H'\\vQF-$!
18iFjb-;5F-7$$!1++]sih[PF-$!16`<h\"3q-\"F-7$$!1++DrX5=OF-$!1wyh/?sJ5F-
7$$!1+++qGf([$F-$!1QaT-fPI5F-7$$!1+++:LodKF-$!1!)*fYYXr,\"F-7$$!1+++5'
f))*HF-$!1(\\V\"fI-]**Fio7$$!1+++]J(*QFF-$!1rg^Pcde(*Fio7$$!1+++!RC&)[
#F-$!1H3XX!*eh'*Fio7$$!1++]AH4hAF-$!1Mvie^IV'*Fio7$$!1+++5\\l!*>F-$!1G
%yS,7*Q'*Fio7$$!1+++S%e:w\"F-$!1*=A'p?$ob*Fio7$$!1++D6;JG;F-$!1:.?i'Gk
V*Fio7$$!1++]#yk]\\\"F-$!1J$\\YJk,C*Fio7$$!1++Dh(=rP\"F-$!1&e,*[QD!**)
Fio7$$!1+++SF<f7F-$!178'pCQ\"f')Fio7$$!1++]#yh.+\"F-$!1=1cN/x<wFio7$$!
1(****\\ZD\"RvFio$!19s?\"o1(4iFio7$$!1'*****\\ion\\Fio$!1c(o1)=4WVFio7
$$!1'****\\K-jg#Fio$!1!Q[[<IuN#Fio7$$!16,++]2Bf!#=$!17j;t\")3FaFcy7$$
\"1*****\\xgke#Fio$\"1!R*=k2%*RBFio7$$\"1)****\\-V&*)[Fio$\"1/_[RG&>G%
Fio7$$\"1.++]\\$pP(Fio$\"1+xxI4G.hFio7$$\"1'******>am%**Fio$\"1P$>&o:z
*e(Fio7$$\"1+++:B1Y7F-$\"1egwC>*ph)Fio7$$\"1++DE?on8F-$\"1%pq>tdo'*)Fi
o7$$\"1++]P<I*[\"F-$\"16,(=;4(H#*Fio7$$\"1++D\"pRVi\"F-$\"1;jK\"Rg<V*F
io7$$\"1+++XwPf<F-$\"1VlI&[y`b*Fio7$$\"1******fG0-?F-$\"160$QoA-k*Fio7
$$\"1+++]/;hAF-$\"1))zw&y/Lk*Fio7$$\"1****\\P/&f\\#F-$\"1*)y@G&QJm*Fio
7$$\"1,++5zj_FF-$\"1&pKa\"Rem(*Fio7$$\"1****\\<3;%*HF-$\"1CJBMa+Y**Fio
7$$\"1++]Z=iYKF-$\"1/1`#)fF;5F-7$$\"1******\\'[M\\$F-$\"1aXKw4bI5F-7$$
\"1***\\P/^Ei$F-$\"1wc:H`mJ5F-7$$\"1****\\PM&=v$F-$\"1:(4Z\\2o-\"F-7$$
\"1++v)p!HwQF-$\"1[*zh,Pf,\"F-7$$\"1,++gzs+SF-$\"1!y[W?n=***Fio7$$\"1+
++0\"Q_D%F-$\"1/l@dGgB&*Fio7$$\"1++DT%R9Q%F-$\"1J$oCdMhG*Fio7$$\"1,+]x
2k2XF-$\"1`x-`D*H5*Fio7$$\"1,]7QPilXF-$\"1Op[Ge:_!*Fio7$$\"1,+v)p1Oi%F
-$\"1v%GsWW/.*Fio7$$\"1,]Pf'*e\"o%F-$\"1?fW:m%R/*Fio7$$\"1,++?EdRZF-$
\"1(fNoK\\()4*Fio7$$\"1,+DOw-1[F-$\"1GA#zIY*>#*Fio7$$\"1++]_E[s[F-$\"1
L3^%>F8T*Fio7$$\"1++vow$*Q\\F-$\"132sMC&)z'*Fio7$$\"1+++&o#R0]F-$\"1y8
l5;1.5F-7$$\"1++]-!pU7&F-$\"15\"*>*o')o3\"F-7$$\"1+++?`9V_F-$\"1nNEu)=
f>\"F-7$$\"1++]<#Rm\\&F-$\"1?#3sTA\"o9F-7$$\"1++v=dHdbF-$\"1'z/$*e\"\\
C:F-7$$\"1+++?A&zh&F-$\"1<G=')3?o:F-7$$\"1+]iq/G[cF-$\"1-!)e-KJ$e\"F-7
$$\"1,+D@(3'ycF-$\"1PM2map#f\"F-7$$\"1+](=(p$*3dF-$\"1!Q\"\\dPI&f\"F-7
$$\"1++]A_ERdF-$\"1(e*[>C***e\"F-7$$\"1+](o\"*[W!eF-$\"1PU*R(yuX:F-7$$
\"1++D6EjpeF-$\"1KRl^ujW9F-7$$\"1,]i0j\"[$fF-$\"1<4/n*4&p7F-7$$\"\"'F*
$\"1K1%ee-++\"F--%'COLOURG6&%$RGBG$\"#5!\"\"F*F*-F$6$7Y7$F($!1cz];r()*
***Fio7$F>$!1<y7fEz****Fio7$Ffn$!1)G*))RJn****Fio7$F[o$!1kN[eYX****Fio
7$Feo$!1&GfH0(3****Fio7$Fjp$!11Ry2aZ)***Fio7$F^r$!1H#G4TZv***Fio7$Fhr$
!1&4IJj()f***Fio7$F]s$!1q::(yCL***Fio7$Fgs$!1#=pg!Q\"*))**Fio7$Fat$!13
!pfg@8)**Fio7$Fft$!1T!yN^L/(**Fio7$F[u$!1jwz(*[V]**Fio7$F`u$!1hDuB'*y;
**Fio7$Feu$!14p@_l0j)*Fio7$Fju$!1hxXN2.&y*Fio7$F_v$!1yK>#f8Oj*Fio7$Fdv
$!1_7))=\"onU*Fio7$F^w$!1]%eiKCD/*Fio7$Fhw$!1![Z#=)e$3&)Fio7$F]x$!1Q%Q
Y`guh(Fio7$Fbx$!1;X'pCtZP'Fio7$$!1(***\\ieS`iFio$!1qIWi]N[bFio7$Fgx$!1
+IX!e?df%Fio7$$!1'***\\(G%*py$Fio$!1AV#yiudh$Fio7$F\\y$!1Q\\Qe\"\\)[DF
io7$$!1****\\PlwK8Fio$!1c8.U5$\\K\"Fio7$Fay$!1;\">\\t0I#fFcy7$$\"1****
\\7]hj7Fio$\"1QZ![@KpD\"Fio7$Fgy$\"1zZ\"zF(GIDFio7$$\"1********=+QPFio
$\"1!)om'=7Jd$Fio7$F\\z$\"1s(oi\"3'Q`%Fio7$$\"1++]()*QK8'Fio$\"1=C')Qk
ikaFio7$Faz$\"1FB[Hg\\xiFio7$Ffz$\"12X<8lW$f(Fio7$F[[l$\"1kmZ'fd<Z)Fio
7$Fe[l$\"1934\"yh>.*Fio7$F_\\l$\"1k![sdMVU*Fio7$Fd\\l$\"1!yLmHB<k*Fio7
$Fi\\l$\"1(\\xTXf]y*Fio7$F^]l$\"1y[())zh]')*Fio7$Fc]l$\"15,\"o%Q->**Fi
o7$Fh]l$\"1(p>23o*\\**Fio7$F]^l$\"15NxEJxp**Fio7$Fb^l$\"1RPP#))Q:)**Fi
o7$F\\_l$\"1$R'\\5`)*))**Fio7$Ff_l$\"1Eu(=v-L***Fio7$F[`l$\"1RFH_Q(f**
*Fio7$Fe`l$\"1*)fXI&pv***Fio7$Fial$\"1y;1K:Z)***Fio7$F]cl$\"1u`A#y,\"*
***Fio7$Fgcl$\"1$=mWoT%****Fio7$F\\dl$\"1BX%)=Pm****Fio7$Fjel$\"1#foM+
$z****Fio7$F^gl$\"1cz];r()****Fio-Fcgl6&FeglF*FfglF*-%+AXESLABELSG6$Q
\"u6\"%!G-%%VIEWG6$;F(F^gl%(DEFAULTG" 2 380 380 380 2 0 1 0 2 9 0 4 2 
1.000000 45.000000 45.000000 10030 10061 10056 10074 0 0 0 20530 0 
12020 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 }}}{EXCHG {PARA 0 "> " 
0 "" {MPLTEXT 1 0 184 "evalf(6*cos(Pi*(13/26)),4);evalf(6*cos(Pi*(11/2
6)),4);evalf(6*cos(Pi*(9/26)),4);evalf(6*cos(Pi*(7/26)),4);evalf(6*cos
(Pi*(5/26)),4);evalf(6*cos(Pi*(3/26)),4);evalf(6*cos(Pi*(1/26)),4);" }
}{PARA 11 "" 1 "" {XPPMATH 20 "6#\"\"!" }}{PARA 11 "" 1 "" {XPPMATH 
20 "6#$\"%O9!\"$" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#$\"%)y#!\"$" }}
{PARA 11 "" 1 "" {XPPMATH 20 "6#$\"%zR!\"$" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6#$\"%Q\\!\"$" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#$\"%5c!
\"$" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#$\"%cf!\"$" }}}{EXCHG {PARA 0 "
> " 0 "" {MPLTEXT 1 0 126 "evalf(tanh(1.436),4);evalf(tanh(2.788),4);e
valf(tanh(3.979),4);evalf(tanh(4.938),4);evalf(tanh(5.610),4);evalf(ta
nh(5.956),4);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#$\"%H*)!\"%" }}{PARA 
11 "" 1 "" {XPPMATH 20 "6#$\"%D**!\"%" }}{PARA 11 "" 1 "" {XPPMATH 20 
"6#$\"%$***!\"%" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#$\"%****!\"%" }}
{PARA 11 "" 1 "" {XPPMATH 20 "6#$\"%+5!\"$" }}{PARA 11 "" 1 "" 
{XPPMATH 20 "6#$\"%+5!\"$" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 
172 "q(u):=interp([-5.956,-5.610,-4.938,-3.979,-2.788,-1.436,0,1.436,2
.788,3.979,4.938,5.610,5.956],[-1,-1,-0.9999,-0.9993,-0.9925,-0.8929,0
,0.8929,0.9925,0.9993,0.9999,1,1],u);" }}{PARA 12 "" 1 "" {XPPMATH 20 
"6#>-%\"qG6#%\"uG,<*$)F'\"#7\"\"\"$\"+Y[bhy!#D*$)F'\"#6F,$!+J^Yjo!#<*$
)F'\"#5F,$!$J%!#;*$)F'\"\"*F,$\"+<Tw4#)!#:*$)F'\"\")F,$\"#h!#9*$)F'\"
\"(F,$!+L)R2$Q!#8*$)F'\"\"'F,$\"\"\"!#7*$)F'\"\"&F,$\"+#H+?%))FS*$)F'
\"\"%F,$FP!#6*$)F'\"\"$F,$!+$>HZ2\"!#5*$)F'\"\"#F,$!\")F]oF'$\"+`$4.4)
F]o$!\"%F]oFR" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 31 "plot([q(u)
,tanh(u)], u=-6..+6);" }}{PARA 13 "" 1 "" {INLPLOT "6&-%'CURVESG6$7^o7
$$!\"'\"\"!$!1o9Cv1)G%**!#;7$$!1++]P&3Y$f!#:$!1@$)R**e'>+\"F17$$!1+++v
q@peF1$!1%R@)QLQ05F17$$!1++]7c#Q!eF1$!1(R()zeCf+\"F17$$!1+++]TVQdF1$!1
Hiz#=uY+\"F17$$!1++DE1kCcF1$!1)fiNAx0+\"F17$$!1++]-r%3^&F1$!1$zRY]UR'*
*F-7$$!1+++l;!\\D&F1$!1Z5dGknH**F-7$$!1+++b'fs*\\F1$!1TWTcO5\")**F-7$$
!1++]s@%3u%F1$!12nPE*Gc+\"F17$$!1++]U.6.XF1$!1M5=UVK45F17$$!1++]-G&pD%
F1$!1AJ)yn&R25F17$$!1++]AjP-SF1$!1Xz+[08+5F17$$!1++]sih[PF1$!1!pEL0N)3
**F-7$$!1+++qGf([$F1$!1!)[qb,rN)*F-7$$!1+++:LodKF1$!1LXk;Hq;)*F-7$$!1+
++5'f))*HF1$!1/Q?Xs6c)*F-7$$!1+++]J(*QFF1$!1X5Uk![L%**F-7$$!1+++!RC&)[
#F1$!1(QPj\\zH+\"F17$$!1++]AH4hAF1$!1+TLd](e+\"F17$$!1++D;R(e7#F1$!1$z
Txq*4.5F17$$!1+++5\\l!*>F1$!1>)oe/Nb&**F-7$$!1+++vm5w=F1$!1FJ%f<9g%)*F
-7$$!1+++S%e:w\"F1$!16Hnk#G!)o*F-7$$!1++]#yk]\\\"F1$!1`uv4P_.\"*F-7$$!
1+++SF<f7F1$!18y;['oFI)F-7$$!1++]#yh.+\"F1$!1IVS9:;-rF-7$$!1(****\\ZD
\"RvF-$!1\")p)e5j)fcF-7$$!1'*****\\ion\\F-$!1+o'))30**)QF-7$$!1'***\\(
G%*py$F-$!1*=u(f361IF-7$$!1'****\\K-jg#F-$!16nR)4e'*3#F-7$$!1****\\Plw
K8F-$!1u`%*=)3d2\"F-7$$!16,++]2Bf!#=$!1!*)>X(*G>z%Fgu7$$\"1****\\7]hj7
F-$\"1_g,e!Q,-\"F-7$$\"1*****\\xgke#F-$\"1O,JZH.u?F-7$$\"1********=+QP
F-$\"1lk2QwmoHF-7$$\"1)****\\-V&*)[F-$\"1t\\FnTgKQF-7$$\"1.++]\\$pP(F-
$\"1oe7k&)ebbF-7$$\"1'******>am%**F-$\"1W'Qr3/?2(F-7$$\"1+++:B1Y7F1$\"
1ly*4Sc+D)F-7$$\"1++]P<I*[\"F1$\"115%oyVs3*F-7$$\"1++D\"pRVi\"F1$\"1D^
y9sAF%*F-7$$\"1+++XwPf<F1$\"1RI4WF^%o*F-7$$\"1****\\__r!)=F1$\"1P9$GM;
8&)*F-7$$\"1******fG0-?F1$\"1ka,Fd,k**F-7$$\"1+++bmgJ@F1$\"1j!)[YhI.5F
17$$\"1+++]/;hAF1$\"1waIQa(e+\"F17$$\"1****\\P/&f\\#F1$\"11S2X[x-5F17$
$\"1,++5zj_FF1$\"1bLdsT?Q**F-7$$\"1****\\<3;%*HF1$\"1Qy4vyOd)*F-7$$\"1
++]Z=iYKF1$\"1-`DKx3<)*F-7$$\"1******\\'[M\\$F1$\"1]e:k.$o$)*F-7$$\"1*
***\\PM&=v$F1$\"13x?`r'*4**F-7$$\"1,++gzs+SF1$\"1Z`sWD2+5F17$$\"1+++0
\"Q_D%F1$\"1#G\\)R?O25F17$$\"1,+]x2k2XF1$\"1u-K.HI45F17$$\"1,++?EdRZF1
$\"1#3J*>2m05F17$$\"1+++&o#R0]F1$\"1=k2xVsy**F-7$$\"1+++?`9V_F1$\"1rCa
w'o/$**F-7$$\"1++]<#Rm\\&F1$\"192WLq`f**F-7$$\"1+++?A&zh&F1$\"1?\"zLQ8
.+\"F17$$\"1++]A_ERdF1$\"1RgXsyp/5F17$$\"1+](o\"*[W!eF1$\"1buK#oHf+\"F
17$$\"1++D6EjpeF1$\"1')[wKBP05F17$$\"1,]i0j\"[$fF1$\"1WQxd%\\>+\"F17$$
\"\"'F*$\"1\"R?[<&)G%**F--%'COLOURG6&%$RGBG$\"#5!\"\"F*F*-F$6$7Y7$F($!
1cz];r()****F-7$F?$!1<y7fEz****F-7$FI$!1)G*))RJn****F-7$FN$!1kN[eYX***
*F-7$FS$!1&GfH0(3****F-7$FX$!11Ry2aZ)***F-7$Fgn$!1H#G4TZv***F-7$F\\o$!
1&4IJj()f***F-7$Fao$!1q::(yCL***F-7$Ffo$!1#=pg!Q\"*))**F-7$F[p$!13!pfg
@8)**F-7$F`p$!1T!yN^L/(**F-7$Fep$!1jwz(*[V]**F-7$Fjp$!1hDuB'*y;**F-7$F
_q$!14p@_l0j)*F-7$Fdq$!1hxXN2.&y*F-7$F^r$!1yK>#f8Oj*F-7$Fhr$!1_7))=\"o
nU*F-7$F]s$!1]%eiKCD/*F-7$Fbs$!1![Z#=)e$3&)F-7$Fgs$!1Q%QY`guh(F-7$F\\t
$!1;X'pCtZP'F-7$$!1(***\\ieS`iF-$!1qIWi]N[bF-7$Fat$!1+IX!e?df%F-7$Fft$
!1AV#yiudh$F-7$F[u$!1Q\\Qe\"\\)[DF-7$F`u$!1c8.U5$\\K\"F-7$Feu$!1;\">\\
t0I#fFgu7$F[v$\"1QZ![@KpD\"F-7$F`v$\"1zZ\"zF(GIDF-7$Fev$\"1!)om'=7Jd$F
-7$Fjv$\"1s(oi\"3'Q`%F-7$$\"1++]()*QK8'F-$\"1=C')QkikaF-7$F_w$\"1FB[Hg
\\xiF-7$Fdw$\"12X<8lW$f(F-7$Fiw$\"1kmZ'fd<Z)F-7$F^x$\"1934\"yh>.*F-7$F
hx$\"1k![sdMVU*F-7$Fby$\"1!yLmHB<k*F-7$F\\z$\"1(\\xTXf]y*F-7$Faz$\"1y[
())zh]')*F-7$Ffz$\"15,\"o%Q->**F-7$F[[l$\"1(p>23o*\\**F-7$F`[l$\"15NxE
Jxp**F-7$Fe[l$\"1RPP#))Q:)**F-7$Fj[l$\"1$R'\\5`)*))**F-7$F_\\l$\"1Eu(=
v-L***F-7$Fd\\l$\"1RFH_Q(f***F-7$Fi\\l$\"1*)fXI&pv***F-7$F^]l$\"1y;1K:
Z)***F-7$Fc]l$\"1u`A#y,\"****F-7$Fh]l$\"1$=mWoT%****F-7$F]^l$\"1BX%)=P
m****F-7$Fg^l$\"1#foM+$z****F-7$F[`l$\"1cz];r()****F--F``l6&Fb`lF*Fc`l
F*-%+AXESLABELSG6$Q\"u6\"%!G-%%VIEWG6$;F(F[`l%(DEFAULTG" 2 380 380 
380 2 0 1 0 2 9 0 4 2 1.000000 45.000000 45.000000 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 1 1 0 0 0 2140 0 0 0 0 0 0 0 }}}{EXCHG {PARA 0 "> " 0 
"" {MPLTEXT 1 0 44 "plot([p(u)-tanh(u),q(u)-tanh(u)], u=-6..+6);" }}
{PARA 13 "" 1 "" {INLPLOT "6&-%'CURVESG6$7_s7$$!\"'\"\"!$!1!=!4)=5pA\"
!#?7$$!1+]PM@l$)f!#:$!1xsW=)Q>x(!#<7$$!1++voUInfF1$!1O%f\"eo,%[\"!#;7$
$!1+]7.k&4&fF1$!1d8uI^WC@F:7$$!1++]P&3Y$fF1$!1_!))o\\z@q#F:7$$!1***\\i
!G\">!fF1$!1\"GoEdLOo$F:7$$!1+++vq@peF1$!1O0cCI5bWF:7$$!1++]7c#Q!eF1$!
1y1q*y8VY&F:7$$!1+++]TVQdF1$!1p>cx-t-fF:7$$!1+D1pd)*4dF1$!1PYo-Ez_fF:7
$$!1**\\7)QP:o&F1$!1\"=pA8<G$fF:7$$!1+v=2!*3`cF1$!1J1@rbJ_eF:7$$!1++DE
1kCcF1$!1*HDj22+s&F:7$$!1+]PkQunbF1$!1))o'fnk6L&F:7$$!1++]-r%3^&F1$!14
?(*>k$>#[F:7$$!1+]7V2'oW&F1$!1@&fCd`?;%F:7$$!1++v$QuGQ&F1$!1uWyObtfMF:
7$$!1+]PC!)))=`F1$!1(RbM$RJbFF:7$$!1+++l;!\\D&F1$!1nye-52z?F:7$$!1++]i
6\\!>&F1$!1FjWQ,))[9F:7$$!1+++g13E^F1$!15R%)R;#R%))F47$$!1++]d,nh]F1$!
1$)=O<E)p%RF47$$!1+++b'fs*\\F1$\"1/X&)HC^$f\"!#=7$$!1++v840p[F1$\"1$=z
d\"*z@*fF47$$!1++]s@%3u%F1$\"1Q_=7>C!)*)F47$$!1,+v$pD6r%F1$\"1O$))oXG1
K*F47$$!1+++:#49o%F1$\"10)QpbSWa*F47$$!1++DOFp^YF1$\"1\\86.Atf'*F47$$!
1++]di(>i%F1$\"1!zP,&=ou'*F47$$!1++vy(fAf%F1$\"1S!*zpU_(f*F47$$!1++++L
aiXF1$\"1ny#=x)[O%*F47$$!1++D@o#G`%F1$\"1b[_[Mu*>*F47$$!1++]U.6.XF1$\"
1ri66^M&*))F47$$!1++]s:.!Q%F1$\"18aLl8'G3(F47$$!1++]-G&pD%F1$\"1c:'\\l
/wv%F47$$!1++]AjP-SF1$\"1STh^@aMS!#>7$$!1++](H'\\vQF1$!1nzF\\Be)o\"F47
$$!1++]sih[PF1$!11$Ro0y;\"GF47$$!1+](=UgLo$F1$!1,kWYl5WJF47$$!1++DrX5=
OF1$!1cGYvS5;LF47$$!1+]i?([Gb$F1$!1Mp_k38QLF47$$!1+++qGf([$F1$!1iP&==u
VA$F47$$!1++]#4QEP$F1$!1#y5O_Fru#F47$$!1+++:LodKF1$!1rv@I8@5?F47$$!1++
+5'f))*HF1$\"1WFmTlQ=TF-7$$!1+++!Q;*oGF1$\"1'R3)y5qv!*Fir7$$!1+++]J(*Q
FF1$\"1(*[Ei)R@e\"F47$$!1+++q([Ph#F1$\"11i7`'3)\\>F47$$!1+++!RC&)[#F1$
\"1)zgw1vY,#F47$$!1++Dc'3[P#F1$\"1Ik&)pv>?=F47$$!1++]AH4hAF1$\"1sAIodD
<9F47$$!1+++5\\l!*>F1$!1&R]^)=U)H&F[w7$$!1+++S%e:w\"F1$!1i$4u]R1I\"F47
$$!1++D6;JG;F1$!1D_<Z/@#y\"F47$$!1++]#yk]\\\"F1$!13)3R))*Rw>F47$$!1++D
h(=rP\"F1$!1jEw#y$4s=F47$$!1+++SF<f7F1$!1?$QrG%z2:F47$$!1++DhswH6F1$!1
,0nZb'e[)Fir7$$!1++]#yh.+\"F1$!1+kz@#4!*4$F-7$$!1(****\\ZD\"RvF:$\"19I
ddcm];F47$$!1(***\\ieS`iF:$\"1#>)f!)o%fD#F47$$!1'*****\\ion\\F:$\"1VC%
y*pG;DF47$$!1'***\\(G%*py$F:$\"1=DQ(*4<!R#F47$$!1'****\\K-jg#F:$\"1zbO
N)*=9>F47$$!1****\\PlwK8F:$\"1][?!Q=)y5F47$$!16,++]2BfFir$\"1U!Gvhv\"f
\\F[w7$$\"1****\\7]hj7F:$!1zS$3thj-\"F47$$\"1*****\\xgke#F:$!1&)QDP^Y.
>F47$$\"1********=+QPF:$!1-(=zlirP#F47$$\"1)****\\-V&*)[F:$!1!oNywz!>D
F47$$\"1++]()*QK8'F:$!1myJ*H[kH#F47$$\"1.++]\\$pP(F:$!1li/()4:U<F47$$
\"1'******>am%**F:$!1X#p^lW\\l$F[w7$$\"1++]nQO?6F1$\"1)Gufh'4@zFir7$$
\"1+++:B1Y7F1$\"1JR*GGVBX\"F47$$\"1++DE?on8F1$\"1/<]KBH_=F47$$\"1++]P<
I*[\"F1$\"1tHz2QZx>F47$$\"1++D\"pRVi\"F1$\"1H\"3\"*3yCz\"F47$$\"1+++Xw
Pf<F1$\"1\"z%e!3R/J\"F47$$\"1******fG0-?F1$!1v!pK!Gh+:F[w7$$\"1+++]/;h
AF1$!1&4&4%oYvT\"F47$$\"1++vVabyBF1$!17^3Wq:I=F47$$\"1****\\P/&f\\#F1$
!1&))plqK#>?F47$$\"1++vtTHCEF1$!1j(=;\">UI>F47$$\"1,++5zj_FF1$!1]Tx8$*
RC:F47$$\"1++vj$*RtGF1$!1\\\\nUo&oz)Fir7$$\"1****\\<3;%*HF1$!1TFd'[YE'
RF[w7$$\"1++]Z=iYKF1$\"1d_K&)p')H>F47$$\"1++v[_.qLF1$\"1\\b\\2B*Gt#F47
$$\"1******\\'[M\\$F1$\"1+!=(3)3(RKF47$$\"1**\\(o%)\\!eNF1$\"1s(zGLs:M
$F47$$\"1***\\P/^Ei$F1$\"19<X\")[84LF47$$\"1**\\iSAD(o$F1$\"1#Qu+rs)GJ
F47$$\"1****\\PM&=v$F1$\"1Bv+mj*3z#F47$$\"1++v)p!HwQF1$\"1aFYG6fz;F47$
$\"1,++gzs+SF1$!1*[Y'GuaN9F[w7$$\"1+++0\"Q_D%F1$!1XBw]*4Ps%F47$$\"1++D
T%R9Q%F1$!1!f)pZCP2rF47$$\"1,+]x2k2XF1$!1`BGu(pd%*)F47$$\"1,D\"yDKm`%F
1$!1(e&)H*p'RB*F47$$\"1,]7QPilXF1$!1!zm/'zzc%*F47$$\"1+vV=_h%f%F1$!1'=
'RSow1'*F47$$\"1,+v)p1Oi%F1$!1ENC:9Gw'*F47$$\"1,D1z\")f_YF1$!15,,zxpd'
*F47$$\"1,]Pf'*e\"o%F1$!1S?\"*f*pLa*F47$$\"1+voR6e5ZF1$!1;%[Hv/dK*F47$
$\"1,++?EdRZF1$!173E_?A(**)F47$$\"1++]_E[s[F1$!1)>_9'4,veF47$$\"1+++&o
#R0]F1$\"1s4%)GCV^JFir7$$\"1++]-!pU7&F1$\"1-iQ:0v&p)F47$$\"1+++?`9V_F1
$\"1'[p\"equf>F:7$$\"1+]P%z=lI&F1$\"1srj;rh@EF:7$$\"1++voA*)p`F1$\"1.!
y\"[6)eJ$F:7$$\"1+]7VdELaF1$\"1Z\"f(4w'[,%F:7$$\"1++]<#Rm\\&F1$\"1uwB`
/c\"o%F:7$$\"1++v=dHdbF1$\"13t*ov8_C&F:7$$\"1+++?A&zh&F1$\"1;!prpsAo&F
:7$$\"1+]iq/G[cF1$\"1$orPL!QLeF:7$$\"1,+D@(3'ycF1$\"1o++b$)=FfF:7$$\"1
,DcYGx$p&F1$\"1\")>\\2<Q\\fF:7$$\"1+](=(p$*3dF1$\"1^vf:vD`fF:7$$\"1+v=
(4,Ts&F1$\"1KU7.9NPfF:7$$\"1++]A_ERdF1$\"1\"GF9>J,!fF:7$$\"1+](o\"*[W!
eF1$\"1f`6O/mdaF:7$$\"1++D6EjpeF1$\"1$)3p/S`YWF:7$$\"1+vVeWA-fF1$\"1\"
Gw'HQLvOF:7$$\"1,]i0j\"[$fF1$\"1')4#\\mR_p#F:7$$\"1^(=#HA6^fF1$\"1R/%)
pqm=@F:7$$\"1+D\"G:3u'fF1$\"1)=!)=1k(z9F:7$$\"1]iSwSq$)fF1$\"1r,1u#Q'[
xF47$$\"\"'F*$\"1%Q.O)*=u[\"F--%'COLOURG6&%$RGBG$\"#5!\"\"F*F*-F$6$7cu
7$F($\"11)[m7W'*p&Fir7$FA$!1%R]zm/*z>Fir7$FK$!1(evl*3I*R&Fir7$$!1++vV8
_OeF1$!1'4PJ&GGcfFir7$FP$!1+u,p-yUfFir7$$!1***\\7))H6x&F1$!1!3oYU*R&[&
Fir7$FU$!1'eZM)o\"\\p%Fir7$Fco$!1=`!pBlD.'F[w7$F]p$\"1g%\\\\_jId$Fir7$
Fbp$\"1j6kb9>X`Fir7$Fgp$\"1Ak&ybZY_'Fir7$$!1+D1/7)3N&F1$\"1(>4qV4^(oFi
r7$F\\q$\"1zH)R9'*[1(Fir7$$!1,voW[*oG&F1$\"1oIwx:=(4(Fir7$Faq$\"19<D\"
*H#y(pFir7$F[r$\"1IZ!e@kV:&Fir7$Fer$\"1$R%[a'R$)z\"Fir7$F`s$!1dnJ)f&Q
\"y&Fir7$Fjs$!1^ZEej<prFir7$Fdt$!1a>#GjUzG)Fir7$F^u$!1'\\rtQdt4*Fir7$F
hu$!1A4@)3,'p&*Fir7$$!1+++]1MsWF1$!1Zw\"z^Ygn*Fir7$$!1++]d4dTWF1$!1t*p
mU/po*Fir7$$!1+++l7!3T%F1$!1<(zE&Q8-'*Fir7$F]v$!1\\@96%*\\A%*Fir7$$!1+
+](=#\\=VF1$!1#)=L&fGby)Fir7$Fbv$!1*)G6qX\"pz(Fir7$$!1++]iXmHTF1$!15XW
_L(=y%Fir7$Fgv$!1k!yy#Hp!)zF[w7$Fbw$\"1x\"\\UFvy+)Fir7$F\\x$\"1e=\\(y
\"='=\"F47$Ffx$\"1\"GTE]9hX\"F47$$!1++D\"[:,V$F1$\"1N!y6#z`F:F47$F[y$
\"1F)[iGggc\"F47$$!1+]7)R**QM$F1$\"1>%z/z`Bd\"F47$$!1++v.2;:LF1$\"1QXs
@gup:F47$$!1+]P4?U'G$F1$\"12rh.j4e:F47$F`y$\"1z]LpfIP:F47$$!1++]i9FGJF
1$\"1*3HKAO*H8F47$Fey$\"1QfQf_wJ%*Fir7$F_z$!1c$[y1Wel#Fir7$Fiz$!1q&p:6
%Qn;F47$F^[l$!12qM\"*\\T_AF47$Fc[l$!11C$)y$)>PFF47$$!1+]P>M[$>#F1$!1W'
**=q;$eHF47$$!1++D;R(e7#F1$!1%)HmjK&y6$F47$$!1+vok\"p?4#F1$!1je;RX$=<$
F47$$!1+]78WEe?F1$!1lIER\"3t?$F47$$!1+Dch'fW-#F1$!1@P*e#[PBKF47$Fh[l$!
15avOX@>KF47$$!1++D^y,i>F1$!1ku$*)o<$*>$F47$$!1++]#z!QL>F1$!1!ejfd$)R;
$F47$$!1++vLPu/>F1$!1GB&)R)pG6$F47$$!1+++vm5w=F1$!1zpIY&)oXIF47$$!1++]
dD$)==F1$!1Xm=\\<EiGF47$F]\\l$!1'e;zX,Eh#F47$Fb\\l$!1>&\\\"eVNx<F47$Fg
\\l$!1-.!*\\$Q**4'Fir7$F\\]l$\"1ds!o1v[^'Fir7$Fa]l$\"1qmz+<!f0#F47$$!1
+]i++Z%>\"F1$\"12_Kb#yV&GF47$Ff]l$\"1M&*Hz35]OF47$$!1+](=_k]1\"F1$\"1d
T>,lIBWF47$F[^l$\"1z5M--*H:&F47$$!1(*****\\;Pr()F:$\"1\"z#[aZ\"QM'F47$
F`^l$\"1\\`x595\\rF47$$!1(*\\(=d&p<sF:$\"1eW^5JvysF47$$!1(**\\(ocE'*oF
:$\"1i;0**)H5P(F47$$!1(*\\ild$[d'F:$\"1#)GBO2:CuF47$Fe^l$\"1HSD'orlV(F
47$$!1(\\P4\"4p#4'F:$\"1=,A](3rU(F47$$!1(*\\Pff(>$fF:$\"1FL[?I,2uF47$$
!1'\\7y+h7x&F:$\"1Wc?b+<wtF47$$!1'**\\i0Y0h&F:$\"1Z\\;j][MtF47$$!1'*\\
7`h6*G&F:$\"1#45%eAJ=sF47$Fj^l$\"1(*>'e\"\\:eqF47$$!1'**\\(o-MxVF:$\"1
nXE=#Q(\\mF47$F__l$\"1F8]!oPm4'F47$$!1'**\\iI[m>$F:$\"1&>^u`KmS&F47$Fd
_l$\"1rA))*f5>f%F47$$!1(**\\7VM&p>F:$\"1FY\\&*QF#f$F47$Fi_l$\"1=)f3BAA
\\#F47$$!1****\\Pk)*fpF4$\"1#HN/VZ:K\"F47$F^`l$\"1E#*Rgn2J6Fir7$$\"1*)
**\\78#>-'F4$!17X@6$y]9\"F47$Fc`l$!1ho)ycTzO#F47$$\"1***\\P*y.D>F:$!1P
5F*3V$=NF47$Fh`l$!1Kk/1LaiXF47$$\"1****\\P8BiJF:$!1DvlD&=CO&F47$F]al$!
1aT!f[XW/'F47$$\"1)***\\iCx8VF:$!1()\\HT7.(f'F47$Fbal$!1))z$**[mD,(F47
$$\"1***\\i+\"R6bF:$!1!f!)4%eK.tF47$Fgal$!1_r^VV\\IuF47$$\"1,]7yH;WkF:
$!1nDJz()=MuF47$$\"1,+vop3bnF:$!1%4]0*4G*R(F47$$\"1-]Pf4,mqF:$!1\">uHU
qqK(F47$F\\bl$!1$ekNlu!>sF47$$\"1*****\\d%zh')F:$!1)\\AACdJV'F47$Fabl$
!1I'e.ECW@&F47$$\"1++vVY^d5F1$!1[N)H\"f56XF47$Ffbl$!1dju)pdVw$F47$$\"1
++D\"48K=\"F1$!1#*fO#4_N*HF47$F[cl$!1&*zya>,<AF47$$\"1+]iq@(oI\"F1$!1P
Kg`^;w9F47$F`cl$!1\"HB&)R)y'f(Fir7$$\"1+](=)=\\G9F1$!1#GW&[t\\#)zF[w7$
Fecl$\"1Q#>]d+#GbFir7$Fjcl$\"1DipBj9Z<F47$F_dl$\"1a(\\%o;y,EF47$$\"1++
v[k/?=F1$\"1Z:O?Q$o'GF47$$\"1****\\__r!)=F1$\"1SKsiYfdIF47$$\"1**\\Pa'
\\5\">F1$\"1'prw*\\\\DJF47$$\"1***\\i0%QT>F1$\"1s\"*[FIVvJF47$$\"1**\\
7e%=<(>F1$\"1i5]Cuw2KF47$Fddl$\"1Vo\"QICHA$F47$$\"1***\\(38WM?F1$\"149
\\,&*p?KF47$$\"1****\\d(Ho1#F1$\"1%H\\@*37+KF47$$\"1++D1#=#*4#F1$\"1UP
BH&H>;$F47$$\"1+++bmgJ@F1$\"1\\><F;$p5$F47$$\"1++]_NQ'>#F1$\"1cuLw9.]H
F47$Fidl$\"1GEx)G\\pt#F47$F^el$\"1\"zYV)yYMAF47$Fcel$\"1$z^'=l'oi\"F47
$Fhel$\"14ARgb&)e!*Fir7$F]fl$\"1-XKwD.=>Fir7$Fbfl$!1G)fKA\"*p=%Fir7$Fg
fl$!1*)e=i0-g#*Fir7$$\"1++]K8R?JF1$!1suqW\\O68F47$F\\gl$!1$3#=XR&o_\"F
47$$\"1+D\"y>vuF$F1$!1GuY<og_:F47$$\"1+]7[&G$3LF1$!1lb7:'*zn:F47$$\"1+
vV)*==RLF1$!1ev)3-SDd\"F47$Fagl$!1Q+X2<*pc\"F47$$\"1+]P\\>uJMF1$!1X()4
!pdf_\"F47$Ffgl$!1)*)y@=&3Z9F47$F`hl$!1/)H:YDW<\"F47$Fjhl$!1+&o)Gd\"=!
zFir7$Fdil$\"1X./w`pAuF[w7$$\"1++]KI)z7%F1$\"1!QRGo)eMZFir7$Fiil$\"1/$
3+iaYw(Fir7$$\"1+]7t(Q$=VF1$\"12SX\"fLNy)Fir7$F^jl$\"1:&4Y(p\"GV*Fir7$
$\"1+DJv(*)HT%F1$\"1EgG'[e8h*Fir7$$\"1,]P4,aWWF1$\"1MMmT13!p*Fir7$$\"1
,vVV/4wWF1$\"1EYlp3Bo'*Fir7$Fcjl$\"1>anu-&fa*Fir7$Fg[m$\"1aB_d8Gh#)Fir
7$F[]m$\"1(G9\\smN\"eFir7$Fe]m$!1\"e&*[^Sx.#Fir7$Fj]m$!1[5L\"H&e:^Fir7
$F_^m$!1k6P#z+t*oFir7$$\"1+v=d?$[F&F1$!1#QzT<\"[pqFir7$Fd^m$!11\"*3n'o
c4(Fir7$$\"1+DcJb?Q`F1$!1-9$*RfGppFir7$Fi^m$!1J&)=Lr<'o'Fir7$F^_m$!1'Q
Lt4Eyk&Fir7$Fc_m$!1[3QS&oE,%Fir7$F]`m$\"1ee0K\"pwR$F[w7$F[bm$\"1v%z\"4
@d=ZFir7$$\"1+vopq&=x&F1$\"12!*p>[%)*\\&Fir7$F`bm$\"1NLvW>&y%fFir7$$\"
1+D1k2/PeF1$\"1Z8A7-c_fFir7$Febm$\"1?@/!e\"G)Q&Fir7$F_cm$\"1*)e-DsXj>F
ir7$Fcdm$!1FlvoT>*p&Fir-Fhdm6&FjdmF*F[emF*-%+AXESLABELSG6$Q\"u6\"%!G-%
%VIEWG6$;F(Fcdm%(DEFAULTG" 2 380 380 380 2 0 1 0 2 9 0 4 2 1.000000 
45.000000 45.000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
0 0 0 0 0 }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 0 "" }}}{EXCHG 
{PARA 0 "" 0 "" {TEXT -1 12 "\n           " }}}}{MARK "8 0 0" 0 }
{VIEWOPTS 1 1 0 1 1 1803 }