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 PVKq&Q?
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程序如下 v&^N +>p
|bRi bB
clearclc { F0"U=
h=1000;N=100; hO3C _}
R=100;for i=2:101 xoSBMf
theata(i)=asin(sqrt((i-1)/N));end ;? o"{mbb
theata(1)=0;for i=1:101 F7p`zf@O]
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) 8W.-Y|[5?
end% r(1)=0; g2lv4Tiq-
a=zeros(101,1);c=zeros(101,1); 0O q5;5
x=zeros(101,1);y=zeros(101,1);
*!EHs04
a(1)=550;x(1)=-50; u<@
55k
y(1)=0; Tq6@
1j6p
F, 5}3$
for i=2:100 k=2*a(i-1); kr
?`GQm
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))]; ~fA H6FdZ\
x(i)=XY(1); y(i)=XY(2); :)e/(I]
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; 4.&et()}
i x(i) I>3G"[t
y(i)end }>Lz\.Z/+[
plot(x，y）
