求前辈指点迷津,感觉椭流线表达式有问题,又不知道哪里不对 n;8[WR)
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程序如下 aOHf#!/"sb
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clearclc ]b!o(5m
h=1000;N=100; [2I1W1pd
R=100;for i=2:101 %Cbqi.iuQ
theata(i)=asin(sqrt((i-1)/N));end wJM})O%SQ
theata(1)=0;for i=1:101 |?{3&'`J8w
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) Q!8AFLff4
end% r(1)=0; ,> lOmyh
a=zeros(101,1);c=zeros(101,1); "!()yjy
x=zeros(101,1);y=zeros(101,1); xo2PxUO
a(1)=550;x(1)=-50; !'uL
y(1)=0; p2 u*{k{
ZaJg$
for i=2:100 k=2*a(i-1); @NlE2s6a
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))]; Iko1%GJ1Z
x(i)=XY(1); y(i)=XY(2); -Yx'qz@
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; 8&?Kg>M
i x(i) N>##}i
y(i)end Zg1=g_xY
plot(x,y)