
ГЕОМЕТРИЧЕСКИЕ ХАРАКТЕРИСТИКИ
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dA
x,y.
SX, SY X, Y
SX ydA;
SY
xdA.
A A
: [3
3 , ].
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JX, JY
X, Y
JX y
2dA; JY
x
2dA;
A A
JP
Jp dA;
A
JXY
JXY xydA;
A
: [
4
4 , ].
WX, WY
X, Y
W |
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JX |
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JY |
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ymax |
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xmax |
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|xmax|; |ymax| - |
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X,Y |
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WP
WP JP .
max
max -
: [
3
3 , ].
iX, iY
X, Y
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JX |
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iX |
iY |
J |
Y |
... |
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[
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Wx OXY
CX1Y1
ymax
Wx.
WX |
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JX |
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WX1 |
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JX1 |
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WX WX1 |
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ymax |
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y1max |
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CXY, CX1Y1, CX2Y2, CX3Y3
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CXY, CX1Y1, CX2Y2, CX3Y3
CXY,
Jxy=0.
.
Jx, Jy,
Jmax |
X |
Y |
,JY |
,JY |
,JX |
,JX |
,....... |
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1 |
2 |
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1 |
2 |
Jmin |
Y |
X |
,JY |
,JY |
,JX |
,JX |
,....... |
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1 |
2 |
1 |
2 |
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2.1 |
SY |
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Ai |
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SX |
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Ai |
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xC |
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;yC |
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(1) |
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A |
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A |
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A |
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Sx= y A; SY= x A. |
(2) |
2.2 Y,
Jxy=0.
2.3
JX |
Y |
Y |
Y |
X |
X |
2 |
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1 |
2 |
1 |
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6
2.4
CXcYc
Jy
, Jx
, Jx
yc
OXY.
JX XC
2
A
JY |
Y |
2 A; |
(3) |
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C |
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JXY XCYC
b
A;
a,b
CXcYc.
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