求前輩指點(diǎn)迷津,感覺橢流線表達(dá)式有問題,又不知道哪里不對(duì) #ge)2
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程序如下 eivtH P
4D%9Rc0 G
clearclc 93qwH%
h=1000;N=100; 1axQ)},o@p
R=100;for i=2:101 XY.5Rno4
theata(i)=asin(sqrt((i-1)/N));end OJN2z
theata(1)=0;for i=1:101 PjT=$]
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) <}U'V}g
end% r(1)=0; )3YtIH_
a=zeros(101,1);c=zeros(101,1); l\AMl
\
x=zeros(101,1);y=zeros(101,1); t>GfM
a(1)=550;x(1)=-50; (BxJryXm
y(1)=0; UX3BeUi.)
.x`M<L#M(
for i=2:100 k=2*a(i-1); &Cim!I
F=[h,r(i-1)/2-r(i)/2]; XY=((k^2-norm(F)^2)/(2*k-2*norm(F)*cos(pi-theata(i))))*[cos(pi-theata(i)),sin(theata(i))]; `~eX55W
x(i)=XY(1); y(i)=XY(2); _zt19%Wg
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; cfox7FmW
i x(i) tkQH\5
y(i)end KTvzOI8
plot(x,y)