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 z|o7k;raH
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程序如下 KL8G2"Z
(Mk9##R#
clearclc i7D)'4gkW
h=1000;N=100; |(Bc0sgw}
R=100;for i=2:101 ld-Cb 3R^
theata(i)=asin(sqrt((i-1)/N));end 5p. vo"7
theata(1)=0;for i=1:101 K|q5s]4I
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) R<J1bH1n3
end% r(1)=0; ]>33sb
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a=zeros(101,1);c=zeros(101,1); F.s*^}L[
x=zeros(101,1);y=zeros(101,1); o~vUqj?BA
a(1)=550;x(1)=-50; 9\_^"5l
y(1)=0; g/o@,_
ZB)`*z>*
for i=2:100 k=2*a(i-1); YTc
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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))]; [f^:V :) {
x(i)=XY(1); y(i)=XY(2); xH\#:DLY
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; (V:z 7
i x(i) 5cv&`h8uo_
y(i)end 'UYxVh9D
plot(x，y）
