- . - (.1) . , :
(10)
, :
(11)
:
(12)
(5) ().
.
(1) 1 (.8 .4) ( ) :
(13)
2 (0,y2):
(14)
3 (x3,h):
(15)
4 (b,y4):
(16)
, 9 . 9 . .
(14) (0,0):
(17)
(15) (0,h):
(18)
(15) (b,h):
(19)
(16) (b,h/2):
(20)
, 10 ( ), .
(13), (17)-(20), :
(21)
:
(22)
.9, .10, .11 , .
.. , :
(23)
; .
, B50, .
, , :
(24)
(.9 .11) -. .12. .
, D .
1 MATHEMATICA 5.
1
MATHEMATICA 5
<<Graphics`FilledPlot`
" -";
h=3;
b=5;
" ";
k11:=0.1;
k12=0.1;
k21=0;
k02=-0.1;
k20=0;
|
|
k30=0.1;
k03=-0.1;
" , -";
Px1[y_]:=-3*k03*y-2*k02
Py1[y_]:=2*k12*y+k11
Px3[y_]:=3*k03*y+2*k02+2*k12*b
Py3[y_]:=-2*k12*y-2*k21*b-k11
Px2[x_]:=-2*k21*x-2*k12*h-k11
Py2[x_]:=3*k30*x+2*k20+2*k21*h
" ";
A10+C010
B01+C100
" ";
" ";
-0.2+0.2 x-0.3 y
-0.1+0. x-0.2 y
Graphics
Graphics
Graphics
Graphics
Graphics
Graphics
Graphics
Graphics
Graphics
" ";
Rb=27.5;
Rbt=1.6;
Rb*Rbt
44.
0.340225
-1.44022
" A";
-25.81
1.76301
-0.363015
" B";
40.14
1.62545
0.224554
" C";
50.2425
1.51401
0.785995
" D";
61.29
-
:
..
-
-
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60x84/16
1 . .. 1,1
.-.. 1,1
________________________________________________________________
420043, . , . , .1.