本帖最后由 shouce 于 2015-11-26 21:34 編輯 , F+ s) u. l6 | J# Z; A ?& ^
: n: u- w$ v# o% examlpe7.m
5 o, L+ a( F& B& u0 D! N* ~a=0; b=2;
u9 f6 F/ N9 G$ k1 a; \0 c1 K4 @, keps1=1e-12;eps2=1e-12;
7 g) @$ e3 v0 S' D# s7 A N=300;
1 e$ ^9 m( D" _' aA=[-0.104020146 35.0002164 -0.004160847];
# r' v0 T- `3 c( W3 J[m,n]=size(A);
, i$ R$ v. ] F! Ffor i=1:m
4 f' s7 z: y; z8 ea1=A(i,1);b1=A(i,2);m1=A(i,3);8 d5 ]& f6 }. v+ c# N
end/ O6 B8 B# x1 N! [$ b9 t" I' w- ?
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)));! r6 [8 G, E0 Y' y6 V: p
Hfun=@Bisection;+ L& l! q4 [% N7 ]% h$ L5 [
[k,x,f_value]= feval(Hfun, f,a,b,eps1,eps2,N);
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* N B8 J9 q. s6 f: Y) `" ?% 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( f; Q9 j- e0 k5 m$ y5 D: P
" q/ _" A! _+ y: _部分運行結果：" c9 H& X+ Z5 O2 b8 n
35, 1.303240794, 1.303240794, 1.303240794,0.000000896,# Z" I6 t H, F; ]7 B' ^
36, 1.303240794, 1.303240794, 1.303240794,0.000000279,: D5 `! {2 K% F/ \
37, 1.303240794, 1.303240794, 1.303240794,-0.000000030,+ P' x% U/ X+ @! J
38, 1.303240794, 1.303240794, 1.303240794,0.000000124,2 O8 a+ V9 V, K, [
39, 1.303240794, 1.303240794, 1.303240794,0.000000047,
- U/ Y- M5 X. k3 q9 \ 40, 1.303240794, 1.303240794, 1.303240794,0.000000009,
# @7 z6 Y- }6 f0 Y+ D 41, 1.303240794, 1.303240794, 1.303240794,-0.000000011,
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