Migadikoi G Lykeiou

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Complex Numbers

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  • -

    e-mail: [email protected] www.iliaskos.gr

  • 1

    1. 1.1

    CR

    -R

    i i 12 =- .z C -

    z ia b= + R!a b .

    I-

    ,i R!b b .-

    R I C, ! R I C, 1 .

    z ia b= + .-

    Re z] g a Re z a=] g .-

    Im z] g b Im z b=] g .

    -, ,i R!a b a b+ .

    Imz z 0R +! =] g .Rez z 0I +! =] g .

  • 2

    Im z 0!] g .Re z 0!] g .

    ,z i z i1 2a b c d= + = + .Re ReIm Imz z i i

    z zz z1 21 2

    1 2+ + +a b c d

    a cb d

    = + = +==

    ==

    ] ]] ]g gg g( (z ia b= + -

    ,M a b^ h ,M a b^ hz ia b= +

    -'x x -

    'y y

    z ia b= + -OM ,M a b^ h.

    M(, )

    Im(z)

    Re(z)O

    1.2 ,z i z i1 2a b c d= + = +

    -

    -

  • 3

    z z i i i1 2 a b c d a c b d+ = + + + = + + +^ ^h hz z i i i1 2 a b c d a c b d- = + - + = - + -^ ^ ^h h h

    z z i i i1 2$ a b c d ac bd ad bc= + + = - + +^ ^ ^h h h

    zz

    ii

    i ii i i

    2

    12 2 2 2c d

    a bc d c da b c d

    c dac bd

    c dad bc= +

    + = + -+ - = +

    + - +-^ ^^ ^h hh h

    z i i212 2 2 2a b a b ab= + = - +^ hz i i3 313 3 3 2 2 3a b a ab a b b= + = - + -^ ^h h

    i i i1 1 1 2 22+ = - + =] gi i i1 1 1 2 22- = - - =-] g

    i 0!a b+ z x yi= + ,x y R!

    z i x yi i x y xyi ix yxy2 2

    2 2 2 22 2

    + + +a b a b a bab

    = + + = + - + = +- =

    =^ h (, , ,x y x y1 1 2 2^ ^h h ia b+ -

    z x y i1 1 1= + z x y i2 2 2= + .

    z ia b= +w ib a= -

    z i i i i i iw2a b a b b a= + =- + = - =^ hz ia b= -

    w ib a= + i-

    z i i i i i iw2a b a b b a= - =- - =- + =-^ h

  • 4

    z ia b= + z ia b= -Re ReIm Im

    z zz z

    ==-

    ] ]] ]g gg g( .

    z z z z z zv v1 2 1 2+f f= = = = = =z z z z z zv v1 2 1 2f f+ + + = + + +z z z z z zv v1 2 1 2f f- - - = - - -z z z z z zv v1 2 1 2$ $ $ $ $ $f f=

    zz

    zz

    2

    1

    2

    1=b lz zv v=] ]g g

    Re Imz z z z2 2 2 2$ a b= + = +] ]g gRez z z2 2a+ = = ] gImz z i z i2 2b- = = ] g

    Imz z z z0R + +! = =] gRez z z z0I + +! = =-] g

    -iy

    ,,,,

    i i i i ii

    i

    1 01

    1 23

    v 4 4

    yyyy

    = = = =

    ==

    - =- =

    y y y+

    Z

    [

    \

    ]]

    ]]

    ,,,,

    i

    vi vv

    i v

    1 44 1

    1 4 24 3

    v

    llll

    =

    == +

    - = +- = +

    Z

    [

    \

    ]]

    ]]

    z z 02a b c+ + = R*!a R!b c

  • 5

    42b acD = -

    0>D

    z 2,1 2!a

    b D= - .

    0D =z 2a

    b=- .

    0

  • 6

    f z 0=^ h f z^ h -

    C--

    C .

    R I-

    z x yi= + -ia b+

    ImRe

    z zz z

    00

    R

    I

    +

    +

    !

    !

    ==

    ]]gg

    ,z wz z zz z zR

    I

    +

    +

    !

    !

    ==-

    z x yi= +,M x y^ h

    w f z= ^ h-

    x yi+,x y

    x yi+

    z x yi= +m z f g im m= +^ ^h h

    ,M x y^ h-

    m

    m x f m= ^ h y g m= ^ h

  • 7

    m-

    12 2hn m vyo m+ = 1 12 2fz m vyo m+ =

    w x yi= + z il m= +l mQ^ h

    ,M x y^ h

    -

    -

    1.3

    z ia b= +,M a b^ h

    OM z 2 2a b= = +] g

    M(, )

    Im(z)

    Re(z)O

    z i1 a b= + z i2 c d= +,M a b^ h ,N c d^ h -

    MN z z1 2 2 2a c b d= - = - + -] ^ ^g h h

  • 8

    M(, )

    N(, )Im(z)

    Re(z)O

    -z .

    ,z z1 2

    ,z z1 2 z z1 2- .

    -

    -

    z z z z= - = - =z zz2 =z z z z z zv v1 2 1 2f f=

    zz

    zz

    2

    1

    2

    1=

    z zv v=

    z z z z z z1 2 1 2 1 2!G G- +z z z R2 2 + !=

  • 9

    z z z I2 2 + !=-

    z z z z1 2 1 2&= = z z z z1 2 1 2&= =Y

    z z z z z z z z1 2 1 2 2 2 1 1 2 2+ += = =

    z i i22 2 2 2a b a b ab= + = - +^ h z 2 2 2a b= +

    z z z z z zz z z z z z z z

    v v v v v v1 2 1 2 1 2

    1 2 12

    22

    1 1 2 2

    & + +

    + +

    = = == = =

    -

    --

    , ,f z z z 0=r^ h -z x yi= + ,x y R!

    , ,f z z z 0=r^ h --

    z

    z z z 01 2 3+ + =

    z z z 01 2 3+ + = .z z z z z z z z z z z z0 2 01 2 3 2 12 22 32 1 2 2 3 1 3++ + = + + + + + =^ ^h h .

  • Re

    z z z z zz zz z

    z z

    z z z zz z z z

    z z z z z z z zz z z2

    1 2 3 1 2

    1 2

    1 1

    1 2

    3 1 22

    33

    1 2 3 3

    1 2 1 2 2 2 3 3

    32

    12

    22

    & + +

    +

    +

    + =- ++

    = - + =+ =

    + + + == - -

    ^ ^^h hh

    z z z z zz z z z z

    z z z z z z2

    21 2 3 1 21 2 3

    212

    22

    23

    212

    22

    1 2 32& + ++ =- +

    = - -= - + + =^ ^h h

    1.4

    ,M x y^ h z x yi= + ,N x y0 0^ hz x y i0 0 0= + , , 0>1 2t t t

  • 11

    N(x0, y0)

    Im(z)

    Re(z)Oz z >0 t-

    z0 x x y y >0 2 0 2 2t- + -] ^g hH

    N(x0, y0)

    Im(z)

    Re(z)O

    z z<

  • 12

    ,M x y^ h z x yi= + ,A x y1 1^ hz x y i1 1 1= + ,B x y2 2^ h

    z x y i2 2 2= + .z z z z1 2- = -

    z1 z2Im(z)

    Re(z)O

    B(x2, y2)

    A(x1, y1)

    -

    , , ,x xy y x x x y y y1 2 2AB AB M M2 12 1 1 2 1 2$m m m= -- =- = + = +n

    : y y x xM Mn m- = -n ] g-

    z z z z

  • 13

    Im(z)

    Re(z)O

    B(x2, y2)

    A(x1, y1)

    z z z z>1 2- ---

    z1 z2 z2 H -

    Im(z)

    Re(z)O

    B(x2, y2)

    A(x1, y1)

  • 14

    ,M x y^ h z x yi= + p R*! .z z p z z42- = +r r^ h

    ,E p2 0` j x p2=- .

    2a,M x y^ h z x yi= + ,x yA 1 1^ h

    z x y i1 1 1= + ,B x y2 2^ h -z x y i2 2 2= + c 0> .

    z z z z c1 2- + - = z z c .

    z z z z c1 2- - - = z z c>1 2-z1 z2

    c2a =

    x x y y 12 02

    20

    2

    a b- - - =] ^g h ,x y0 0^ h -

    -: x y 0f A B C+ + = -

    ,d O 0 02 2 2 2f A BA B C

    A BC=

    ++ + =

    +^ h

    z0

    -

  • 15

    z0 .

    : , , : ,y x y xy xy x11 10 1 0

    0 0f m b m m h m

    m bm

    = + =- == +=h h h

    (

    OK t-] g OK t+] g,z z1 2 -

    ,z z1 2 .: , , :c x x y y x

    y OK y x

    x x y yy x

    x x x y

    OKK

    KOK

    OKOK

    02

    02 2

    02

    02 2

    02

    02 2+

    t m m

    tm

    m t

    - + - = = =

    - + - ==

    - + - =

    ] ^] ^ ] ^

    g hg h g h)

    -z w- -

    min z w d t- = - .

    min z w 0- = .

    : ,c K1 1 1t^ h : ,c K2 2 2t^ h -z w-K K1 2^ h

    K K >1 2 1 2t t+^ hmin z w K K1 2 1 2t t- = - -^ hmax z w K K1 2 1 2t t- = + +^ h .

    K K1 2 1 2 1 2G Gt t t t- +^ h -min z w 0- =

    max z w K K1 2 1 2t t- = + +^ h .K K

  • 16

    z w- -

    1.5 C

    z1 z2z1 z2

    z1 z2 -

    -z1 z2

    ,z z1 2 z z z z1 2 1 2+ = + .iv v N! .

    Cz z 02a b c+ + = R!a b c !a .

    z i0 a b= + R!a b -

    z i0 a b= -,z z1 2 z z z z1 2 1 2= .z z z z z z1 2 1 2 1 2G G- + + z1 z2

    1.6 i- .

    ,z z1 2 z z12 22 += z z1 2= z z1 2=- .

    z 13 = z 1= .v N*! S i i iv v2 f= + + +

  • 17

    z- -y x=- .

    z 1=

    z1 z2 z z z z1 2 1 2G- - .z z2 2= .

    z 1= iz

    1.7 ,x y R!

    x x y x y i3 3 2 02 - + + + + =^ h .x x i y yi1 2vyo - + = + .

    ln x e i i2y+ = + .

    xii yi1 2

    1 hn+ = + .

    x x yi y x i3 3 12 - + + = + -] g .,x y R!

    x y xi x y i i6 5 52+ + + = + + +^ ^h h .x yi i xy xi3 6 7 22 + = + - - .

    ix

    iy

    ii

    1 2 2 3 1 86 7

    - + - = -+ .

    i x i x y i112 2- - + + + =^ ^h h .

    x i x yi1+ = + .

    z i x2 2hn= +z i2= + .

    z i i5 4 4 5 5 6m n m n= + - + + +^ ^ ^ ^h h h hR!m n

    z 0= .z i7 20= + .

    R!a w ii

    12a

    a a= ++ + -

    z i1 3 22 2m m m= - + - +] ]g g R!m

  • 18

    z ii

    2 1m mm= + +-] g R!m

    z ii

    ii

    1 22 3

    1 23 4= +

    - + -+ .

    lnz x x xi3 31 2= - - +] g z y i2 2= --

    z x y i3 21 =- + -^ h z x y i5 32 = - - --

    z i ii

    11

    11

    2= - + + + z z2 45 02 - + = .

    z i ii i

    1 11 1

    2 2

    8 16

    = - - ++ + -] ]] ]g gg g

    z ii

    ii

    3 22 3

    21 240 23= -

    + + -+b bl l .

    x 81 04 + = -

    z i23 2 1= -^ h.

    z ii3

    2= - Re z 2582 =-^ h .

    z i23 24= +c m Re z 1=^ h .

    z ii

    21= -+

    w z z1= + .

    z i2 3= +, , ,z z z z- -z C! z z 1 02 + + =z 13 = .z z

    1 22007 2007+ = .

    z z 1 0v v3 2 6 1+ + =+ + v N! .f v i zv=] g v N*! -

    f f f f3 8 13 18 0+ + + =] ] ] ]g g g g .f z i z z12= + +] ]g g .

    f i] g f i-] g.f i f iv v+ - -]^ ]^gh gh .

  • 19

    A i i i i1 11015

    2025= + + + .

    B i i i i i5 7 4 7 3 152 18 31 44= + - + - + .i i i i57 58 59 213fC = + + + + .i i i i2 3 2006$ $ $ $fD = .

    ,E i i i v Nv v v3 1 2 5 3 != + ++ + .Z i i1 1v v2= + +] ]g g.

    i i i i1 2 4 2 4G + - + -= ^ h666 @ @ @ .i i1 13 3H = + + -^ ^h h .

    i i i i i i i i1 1 1 1v v v vv v v v

    2 2 1 2 2 2 32 2 1 2 2 2 3+ + + = + + ++ + + + + + .

    i i i i2 3 f+ + + + l

    S i i i i1 1 v v2 3 f= - + - + + -] gv N*! .

    S i i i i2 3 4 5 2 2 2 1f o o= + + + + + + - + -^ ^ ^ ^h h h h6 @.v N*!

    i i 0v va b a b+ + - =^ ^h h i 0!a b- .z i

    iii

    2 32 3

    2 32 32 2= -

    + + +-^ ^h h

    -

    , ,ii

    ii v2 3

    3 221 2 2 N

    v4 4

    !n-+ + +

    - =nb bl l .

    m l ii i

    i11 5 2

    2 5 02002 2004

    -+ -- + =

    l m` `j j .v N*! z i i3 2 2 3 Iv v2 2 != + + +] ]g g

    z i i1 5 5 R132 132 != + + - -^ ^h h .x yi i3 2+ = + o^ h N*!o

    x y 52 2+ = o .z i

    i11 3= +- o` j N*!o Re Imz z 1+ =^ ^h h .

    Re Rezz

    zz

    11 0 1

    1 0++- = +

    - =ooa `k j .

    Im Imz iz i

    z izi1 0 1 0++

    + = ++ =o

    oa `k j .

  • z i iz i2 2 3 2

    1- = - + .

    iz i

    iz i

    2 3 2+- - = -

    + .

    iz z z i

    21

    3 0-+ + - = .

    i z zi1 2+ = +] g .zi i z4 1 2+ = +] g .

    z i i1 23 3= - + -^ h .z i5 12=- - .

    z i3 42 = + .z z2 2 02 - + = .z z z 1 03 2- + - = .z i z i2 3 02 - - + - =] g .z z2 = .

    z z i3 2 0+ - =^ h .z z1 2 1+ = .z iz 1 02 + + = .z z z3 4 8 03 2+ + - = .z z i2 03 + + = .

    z z z z1 9 0+ + =b bl l .

    P z z z z7 16 103 2= - + -] g .z 1= P z] g.P z 0=] g .

    P z z z z z4 8 4 74 3 2= + + + +] gP z] gP z 0=] g .

    f z 0=^ h f z z i z i z i2 5 2 53 2= + - + - -^ ^ ^h h hii2 +

    z z z3 10 7 10 03 2- + + =z z z z2 3 2 2 04 3 2+ + + + =

  • 21

    z i z i z i3 3 3 4 1 5 03 2- + + + + - =^ ^h h, ,2!a b

    r rb l z i1 31 = +z z4 8 02 hna vyob- - = .

    , 0>a b z i3 21 = -lnz z e2 3 02 b- + =a .z z2 2 02 + + = .

    w z zz z

    42

    1 13

    12

    13

    = -- z1

    Im z 0

  • 22

    ,z z C1 2 ! z z z z 11 1 2 2= = z z z z 1 01 2 1 2 !+ + -z z z z 1 01 2 1 2 !+ +- .,z z C1 2 ! z z z z 11 1 2 2= = w z z

    z z1 R1 2

    1 2 != ++ .

    ,z z C1 2 ! z z z z 11 1 2 2= = w z zz z1 I1 2

    1 2 != +- .

    w zz 12= +

    zz

    zz1 12 2+ = + zz 1=

    ,w zz

    zzz z z z z2 0!= -+ -] ]g g

    ,w 1 1! -6 @.,w z

    zzz z 0!= +

    ,w 2 2! -6 @.f z i z i z1 1 1= - + + +] ] ]g g g .

    f z] g f z] g.f z f z=] ]g g -

    f z z zz z1 1= +- +] ] ]g g g

    z R!Y f z f z1- =b ]l g.

    ,z z1 2 w z z z z1 2 1 2 2= +] g,z z1 2 w z z z z1 2 1 2 2= -] g

    x yi i3 7a b+ = +^ ^h h , , ,x y R!a bx y2 2 3 2 2 7a b+ = +^ ^h h .

    w z iz i2

    2= --

    R I

    w zz 1= +

    w zz i

    24= -

    - -

  • 23

    w ziz z i1= +

    -] g w w 1 R2 !+ + .

    z i2 1 1l l= + + -] g R!l .z i2 3hni vyoi= + R!i .z ivyoi hni= + R!i .z i1 2 vyoi hni= + +^ h R!i .z i2 3vyoi hni= - + -^ h R!i .

    z i i1 2 1 3a= + - -] g R!a .z i1 2 12m m= - + -] ]g g R!m .z i1 2vyoi= + +] g R!i .z i 12m= + +] g R!m .z i 1f{i

    vyoi= + ,2 2

    !i -b l.w z z i3 2= + -] ]g g R!

    y x2 1= -

    Im z 0!] g zw i1 2= + .w z z 12= + + R!

    w z z1 1= +

    Re w 1=] g .w z

    1=- -

    Re w 41=] g Im w 21=-] g

    w zz

    12= +

    - .

    Re Imw w=] ]g g -

    Re Imz z iz4- =-b ]l g Re Rez z zi4 2+ =b ]l g

  • 24

    Re Imz z z i2 1 2 1 3+ + = + +] ]g g.z i2 41 = + z i1 22 = + -

    Im Rew z w z 01 2+ =^ ^h h -OM

    y x2= .z z R1 2 !+ z z R1 2 ! ,z z1 2

    z z R1 2 !+ z z I1 2 !- ,z z1 2

    w z zz

    22

    = + r -

    M z^ h.

    z zi z i1 2- +

    z z 1- z2 -

    z i zi

    , Cf z z zz i z i z != +- +_ ^ ]i h g Re z 0!_ i .

    f z f z1 =d _n i.

    f iz1 R!-c m .

    Re Im Ref z f zi z1 2= +dd cc _nn mm i.

    Rezz zw w2 1 2- = -] g -z i1 21 = + z i3 42 = +

    z1 z2 z z1 22 ziz

    2

    1

    zz

    1200421002

    zz z

    15

    23

    12-

    z i ii i i

    2 3 12 5 3 1

    1 4 2

    6 8 3

    = - ++ - -] ]] ] ]g gg g g

  • 25

    z i21 3 v

    2 = - -c mz i3 5 3 53

    8= + + -_ iz i

    i1 21 2

    v

    v

    4 2

    2

    = +-

    -

    +

    ]] ggz i

    ii i ii i i

    11

    23 7 1 10 26 2 1 3

    196 194

    20 198

    = ++

    - + - -+ - - -^ ^ ^ ^^ ^ ^ ^h h h hh h h h

    z 1=z i2 3 3- - =z i2 5+ - =z i1 3 7- + =z i2 1- =z 3 2+ =z i2 2+z i3 4 3H- +

    z i1 3 4<

  • 26

    z z4 3>2 -z zi1 22 G-z i z i22 G- + -

    z 1= z 1 1- = .

    Rez w z w zw22 2 2+ = + + ] gRez w z w zw22 2 2- = + - ] g

    zw z w z w1 1 12 2 2 2- - - = - -^ ^h hImz iz z z2 22 2 2+ = + ] g

    z 3=w 2= z w 5+ = .

    Re zw 6=] g .z w- .

    z z4 2 1+ = +

    ,z z C1 2 ! z 02 ! zz 0>2

    1 z z z z1 2 1 2+ = + .z C!

    z i iz z2 2 1+- = + = .Re Imz z z2G+^ ^h h .

    ,z w C!z w z w z w22 2 2 2+ + - = +^ hz w z w1 12 2 2G- + +^ ^h h

    , ,z z z C1 2 !z z z2 1 2=

    z z z z z z z z2 212

    22

    2 12

    22

    21

    22

    2+ + + + - = +

    ,z w

    zwz w z1 1 1+++ = = w 1=

    ,z wz w z w2 2 2+ = - w 0! Re w

    z 0=b l .z wi z w2 2 2- = + w 0! Im w

    z 0=b l ., ,z z w1 2 z z 11 2= =

    u z zw z z w z z2

    1 2

    1 2 1 2= -+ - +] g z z1 2! .

  • 27

    ,z z1 2 z z1 2= v N*!

    w z zz zv v

    v

    1 2

    1 2= +-_ i

    .

    ,z z1 2 z z 11 2= = v N*!

    w z zz z1 v v

    v

    1 2

    1 2= -+_ i

    , , , ,z z z z1 2 3 f o

    z iz i

    z iz i

    z iz i 1+ - - .,M x y^ h

    z x y i2 3 2= - + -^ h z z i1 1 2

  • 29

    z x yi= + ,x y R! y 0!

    w zz12

    = -r

    ,M x y^ h -z C! z z1 2 1- = + -

    w i35

    34=- + -

    z it vyoa hna= +^ h ,0 2!a rh6 0>t -z z 2 2 02 2 2vyo i hn i vyo i- + - = -

    2 2< ^ h .z z3 2 3- = + + .

    z x yi= + y 0!z 11 =- z z 12 2= + z z23 =

    ,M x y^ hz.

    z x yi= + y 0!w z

    z22= +

    +r ,M x y^ h -

    z i z i4 3 4 3 6+ - - - - = .z i

    iaa= -+ w i

    i11aa= -

    +R!a -

    z i31a= + R!a

    z i1 21

    aa= + +

    +R!a -

    C!a b 1a b= = .1 0 1 0+a b ab a b ab+ - + = + + - = .a b^ h

    1 0a b ab+ - + = .1 0!a b ab+ - + 1

    1 1a b aba b ab+ - ++ + - = .

    C

  • 34

    z z 15 9 = .z z=o r .z z=-o r .z z=-o .z iz=o r .

    ab bc ca= =

    a b c= = .

    z z3 7 107 7+ =

    z z 17 7= = .-

    z 1! w zz

    11= -+

    z1 z2z z i4 41 2+ = + z z i2 5 51 2- = + -z1 z2 .

    z i1 3 2G- - w i3 2G- - .

    z w= .z w- .

    z1 z2 z3 z z z 11 2 3= = =z z z 01 2 3+ + = .

    z z z z z z1 2 2 3 1 3- = - = - .z z 41 2 2 G- Re z z 11 2 H-] g .

    , ,z z z1 2 3

    , ,z z z1 2 3

    z zz zz z

    z z z zz z z zz z z z

    2 2 2 022

    1 2

    1 2

    1 2

    1 3 2 3

    1 3 2 3

    1 3 2 3

    m

    m

    ---

    + - - - - =- - = - -+ - = -

    ^^h

    h R!m, ,z z z1 2 3

  • 35

    z iz 1 02 + - =z i3 =- .

    z iz i1 11998 2 1998+ + = -^ hz 1 111998 1998+ =-^ h .

    Rez z z z22 0 2 0 2a+ = +r^ hz0 0>a .

    z x yi= +z z z z2 1 3+ + = +r r

    ,z z C1 2 !z z z z

    z z4 3 5 9 16 01 2 1 2

    12

    22+= =

    -+ = .

    z z1 2! z i z iz1 21

    21

    3 2 1= + -` j, ,z z z1 2 3

    z z z z 02 2- + = .,K 1 1-^ h

    2t =w z

    z1

    2= - .,K 1 1^ h

    2t =w z

    1= r .

    2 31a bc= = z i21 a b b a c= + + -^ ^h h

    z i52 a= +z z 1 02 - + =

    z z z 050 70 90+ + = .z z 1 040 40+ + =- .z z z1 1 1 031 30 29- + - + - =^ ^ ^h h h .

    wz wz1 R!-- r

    w ia b= + 12 2 !a b+ .

    w z z2 2= - rw 1= .

    w z z z2 22a= + -r -,1 0!a -^ h.

  • 36

    zi z2=r

    z w zw2 1 27 7+ = + r^ ^h h -

    z i z i z i z i41

    41

    4 410

    - + + = - + -

    w z z4= + r .

    Re z z z z1 1- + = +r r^ ^h h6 @ ,z z1 2z z 2 21 2 G- .

    M z^ h ,A 4 0^ h ,B 25 0` j

    ,A 1 1-^ h ,B 2 0^ hz 2

    2> .

    ,z i8 0 2!+ 6 @ ,z 6 8 12!- 6 @.z0 Imz wz2 02 2t+ + =r^ h

    0>t C!

    z0 .N*!o z w 004 2 4 2+ =o o+ + .

    z z 11 2= = I!Y z z wz z w1 2 1 2+ + =,z z1 2 .

    z z z z z z1 2 2 3 3 1 l- = - = - = -

    z z z z z z1 1 1

    1 2 2 3 3 1- + - + - .

    z iw z w- = + z w z w2 42 2 2+ = + .z wu2 = z 0!

    w u z w u z w u2 2+ + + + - = + .

    z z z2 4 2 01 2 f+ + + + =o o o o- -

    w zz

    22

    I!= +- o` j

    z z3=r .

    z z2 5 02 2 2 2vyo i vyoi hn i vyo i- + + =^ ^h h ,2 2!i r r-` j.

  • 37

    z i1 2 12m m= - + -^ ^h h R!m .C z z z2 23= - +r Re z Z!^ h .1a b c= = = 0a b c+ + =

    a b b c c a- = - = - .

    z i6 8 5- - = .

    z5 15G G .z .

    z .z .

    ,z z1 2z z1 2- .C!a b c

    02 2 2a b c a b c+ + = + + =

    2a bc= .0ab bc ca+ + = .

    2a b b c c a- = - -^ ^ ^h h h.

    -w iz

    z i2 1

    2= +-

    z w- .C1

    i z1 2 2- - =^ h .C2

    w iw i2 42 1- +

    + = .z w- .

    ia b+

  • 38

    : x y2 1 0f - + = .Im Rez z2 1 2+ = -^ ^h h.

    y x42 = .-

    f x x 12= +^ h .z i2 2 4m m= - + -^ ^h h R!m .

    z1 .z2 .

    w z z5= +

    z z2 2 02 2m m+ - + + =^ h .R!m

    ,z z1 2 z z 412 22+ =R!m ,z z1 2 .

    ,z wz w w z

    1 1 2+ = + =r rz w= .z 1= .

    z w w z1 1+ = +r r z w w z

    1 1 2 02

    + - - - =r r` j

    Re Rez z z4 2+ =b ]l g 1] g

    Re z 0!] gw z z

    4= + -w4 4G G- .

    c z i3 4= + + .ii] g

    , ,z z z1 2 3 1] gz z z z z z z z z21 2 2 3 1 3 1 2 3+ + = + +

    z z6 4 9 02 2 2hn a hna vyo a- + + =^ ^h h ,0 2!a rb l

  • 39

    -

    6ar= v N*! z N*v ! .

    , ,z z z1 2 3 z z z 11 2 3+ + =z z z 11 2 3= = =

    z z z1 1 1 11 2 3+ + = .

    z z z z z z 11 2 1 3 2 3+ + = .z z z z z z 41 2 2 2 3 2 1 3 2+ + + + + = .,z w C*! ,z z1 2 z z w w z1 = +

    z z w w z2 = -z z1 2zw R!r z z 01 2 = .

    ,z wz z1 2= .

    z w 6- = z w 10+ =

    z2 8G G .

    wz

    41 4G G .

    z i w i6 18G G- + - .z w i8 2 12G G+ - .

    z i3 1- = w 4 2- =z w2 8G G- .

    , ,z z z1 2 3 z z z 01 2 3+ + =z z z 11 2 3= = = z C!z z z z z z z31 2 3 H- + - + - .

    z 0!

    z z z i z i1 1

  • w zz

    59= -

    - z 5!

    z i2 1 2 1m m= + + -^ ^h h R!m .--

    R!m .

    z i10 = -

    w w z122 0+ - =r .z i z2 4- = + .

    z 6+ .

    z i2 3- - .

    z i z i z31

    31

    9102- + + = + .

    z C! R!a b 0> >a b .z z2 2

    a b a bab

    + - - =r -

    z z7 48- =r

    z ., ,z z z1 2 3 -

    z z z z z z z z z12 22 32 1 2 2 3 1 3+ + = + + .Rezz z zi2 1 0+ - + =r ^ h

    ,z z1 2 z z 21 2 G- .,z z1 2 z z 21 2- =

    z z 81 2 2+ = .z i 3+ =

    w z i z i zi1 21

    22= - + + - +

    w 1= .

  • 41

    wz zi3 8- =r .

    -

    min z w 311- = max z w 5- = .

    z i1 a b= + z zz

    22

    21

    1= +-

    R!a b !b z z R2 1 !- .z z 12 1- = .

    z1 .z12 0>ab

    z1 z i z i1 1 01 120 20+ + - + - =^ ^h h .,z z1 2 1>o z i21 = +o

    z i1 22 = +o .w z

    z2

    1=

    z ww

    11= -

    +

    f c c w c w= + + -^ h C! .z 4= w z

    z28= -

    - -

    w 2= .w w

    w 41

    2

    = +

    z ii

    4 325 m

    = ++^ h

    R!m .

    R!n

    w z z R!n= + .

    R!m z R!Y z z zm + =r .1m = .

    min z i- .z R3 ! .

    , ,z z z1 2 3z z z 01 2 3+ + = z z z 012 22 32+ + =

    z z z z z z 01 2 2 3 3 1+ + = .z z z 01 2 3 ! .

  • 42

    z z z13 23 33= = .z z z1 2 3= = .

    z z z z z z1 1 1

    R1 2 31 2 3

    !+ + + +^ ah k .z z z 0113 213 313+ + = .

    , ,z z z1 2 3

    z w i2 4 4+ = + .-

    : y x 2f = +

    : y x 1h = - w i- ., ,z z z1 2 3

    Re Re Rez z z1 2 3= =^ ^ ^h h h z z z i1 1 1 61 2 3= = = -

    z z z i1 1 1 61 2 3+ + =- .

    , ,z z z1 2 3 .Im Im Imz z z2 31 2 3= =^ ^ ^h h h

    , ,z z z1 2 3 .Imzz z2=r ^ h.M z^ h

    z i 1- = .w z

    1=

    f z z i2= +^ h z C! .f z iz 2= +r^ h f z f z- = r^ ^h h.

    f i z f i z1 2 3+ + + +=^ ^h h.f z f z 102 2+ =r^ ^h h z 1= .

    f z f z= r^ ^h hz R! .

  • 43

    z f z i f i if i2 12+ - = - +^ ^ ^h h h.u f z= ^ h

    z C! f z f z z z2 1 3 7 142+ - = - +^ ^h hz C! .

    f z z z5 62= - +^ h z C! .Re f z^^ hh Im f z^^ hh.

    f z z i5 9 4=- + +^ h .f z z5 4= -^ h -

    zf 0>^ h .f z f z 0>r^ ^h h z C! .f z i z i3 4= + +^ ^h h z C!

    Re Re Imf z z z3 4= -^^ ^ ^hh h hIm Re Imf z z z4 3 1= + +^^ ^ ^hh h h .

    f z^ h -: y x 1f = +

    , , ,z i f z f i^ ^h h -f z f i i z i3 4- = + -^ ^ ^ ^h h h h.

    5CD AB=^ ^h h.-

    z 2 1- = w i2 1- = .

    -z w= .

    z 3G w 3G .z w- .

    z x yi 0!= + ,x y R! w z zz1= - r .

    ia b+ R!a b .z 1= R! .

    Re Imz w z22 2=^ ^h h.f z z z= +r^ h z C!

    f z f z=r^ ^h h z C! .f z R!^ h z R! .

    z 1G f z 2G^ h .f z z i2 3= -^ h .

  • 44

    z z9 1- = - .z .

    w i w i5 5 1- + =r^ ^h h

    z w1 9G G- .z i3 5 21 m n= - + -^ ^h h

    z i2 1 12 n m= - + -^ ^h h A w1^ hw z z1 1 2= + : y x 21f = +

    B w2^ h w z z2 1 2= - -: y x2f =

    ,z z1 2z z 11 2= = z z z z z z z z1 11 2 1 2 1 2 1 2+ + - = + - + .

    z ii

    22aa= +

    +R!a .

    -

    ,z z1 2z i

    i2

    2aa= +

    + 0a = 2a =-

    ,z z1 2 .z z1 2 2= -o o^ ^h h

    o.,z z1 2 z z8 813 23= = .z z

    11

    1= z z

    12

    2= .

    z z z z2 21

    1 2 1 2+ = + .z z1 31 2G G+ .

    A z1^ h z1,O 0 0^ h 2t = B z2^ h -z2 z iz z

    42 1

    1= -

    z2 -

    z i1 a b= + z zz

    22

    21

    1= +-

    R!a b !b z z R2 1 !- .z z 12 1- = .

  • 45

    z1 -

    z12 0>ab -z1 z i z i1 1 01 20 1 20+ + - + - =^ ^h h .

    , ,z z z1 2 3z z z2 2 2 21 2 3= = A z1^ h B z2^ h z3C^ h

    ,z z1 2 z3A 90c=t

    ReRe

    z zz z

    21

    2 3

    1 2 =^ hh .,z z1 2

    Rez z z z z z2 1 3 2 2 3 61 2 2 1 2 1 2G+ - + + + -^ ^h h6 @ .,z z1 2 .

    w zz

    zz

    23

    32

    2

    1

    1

    2= -

    w 1= z w i4 2 1= + - .

    -

    ,z z1 2z z i4 41 2+ = + z z i2 5 51 2- = +,z z1 2 .

    z i1 3 2G- -w i3 2G- -

    z w= .z w- .

    z iz2 = r .

    z z4 4 4 3 02 m m+ + - = R!m .R!m

  • 46

    m

    z i1 21

    0 =- +f z z

    z i12= +

    +^ h z 1!- .f z i3 2= -^ h .

    Re f z 0=^^ hhf i z1 2 1+ + =^ h

    z1z i1 2 1+ + = z2

    z i3 2- - = -z z1 2- .

    Re z1

    41=` j

    Im z 1=^ h Re z^ h.

    z .

    ,z z1 2 Re Rez z1 1

    41

    1 2= =a ak k -

    z z1 2- .C -

    z i 1- =Im z 1H^ h .

    -C w z i z i2

    1 1= - - -` j'y y.

    z iC! - -" , w z iiz 1= ++ .-

    Im z 0

  • 47

    C2 -

    M z C1 1!^ h 'M z C2 2!^ h -z z1 2- .

    ,z z C1 2 ! z z 02 a- + = R!a,z z R1 2 !Y .

    41>a .

    z 1=

    z z z z 01 5 2 5- - - =^ ^h h .w z

    i= r .w w1+ = z i 1- = .w i 2- = z 1 2+ = .

    C1 C2

    M1 M2 z1 z2C1 C2

    z z1 2- .

    z i z i1 2 2 1+ - = - +^ h .z i iz1 2 3+ - =^ h

    -z

    ,z z1 2 -z z1 2- .

  • 48

    Ekswfyllo_Mathimatica_G_Migadikoimigadikoi_new