本帖最后由 shouce 于 2015-11-26 21:34 編輯
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( b6 E: k6 A; c! |; N. N: x% examlpe7.m
1 Z. N" F3 P' ca=0; b=2;
+ ~3 G7 U% I" Zeps1=1e-12;eps2=1e-12;
+ w- t, l' _# {# W! x1 s3 B' B6 \5 ^ N=300;
+ y; z+ u6 A4 p! J8 @) dA=[-0.104020146 35.0002164 -0.004160847];1 y1 x, N( D3 K* i1 C7 _
[m,n]=size(A);) r. B6 W3 k! I: E3 q4 x: i
for i=1:m
" A2 W& z- o4 l/ B6 ^: Da1=A(i,1);b1=A(i,2);m1=A(i,3);' `1 O9 L. d' `( w F& @! D" L
end( F; i" H: L0 q& v+ g8 w) O
f=@ (x) ((285+60*tan(45*pi/180)-b1*sin(x)-a1*cos(x))*(a1+b1*m1)+(60)^2*x*(sin(x)-m1*cos(x))-60*285*tan(45*pi/180)*(m1*sin(x)+cos(x)));* F1 e# ~% F7 H
Hfun=@Bisection;4 ?/ c6 N% _( P3 V
[k,x,f_value]= feval(Hfun, f,a,b,eps1,eps2,N);
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% A 為離散點坐標及導數 中心距 285 左旋 螺旋角45度 在二分法中增加一部些程序,方便了很多7 r; U5 d/ ^5 ~( |
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部分運行結果:- Z5 M+ t3 ]( \
35, 1.303240794, 1.303240794, 1.303240794,0.000000896,8 c7 F% {0 ?# M
36, 1.303240794, 1.303240794, 1.303240794,0.000000279,
: N/ v/ v9 Q# E N+ g 37, 1.303240794, 1.303240794, 1.303240794,-0.000000030,
( R, g- @- I- _- ~# q 38, 1.303240794, 1.303240794, 1.303240794,0.000000124,
! n! {& a: z& B# o2 u7 M |3 } 39, 1.303240794, 1.303240794, 1.303240794,0.000000047,8 U. H: H) ~& \" G' ^. D' C5 o+ ]
40, 1.303240794, 1.303240794, 1.303240794,0.000000009,
0 g1 `" S$ m8 a4 g$ g5 B5 N 41, 1.303240794, 1.303240794, 1.303240794,-0.000000011,
+ a3 i. t$ k9 j9 g4 x! B/ h$ @' @5 c3 W1 O* G, D- h" p+ h+ i
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