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 vQ9 xG))
2J>A;x_?
程序如下 {VrAh*#h
Wb*T
clearclc _KT]l ./
h=1000;N=100; q ? gQ
R=100;for i=2:101 W! 5Blo
theata(i)=asin(sqrt((i-1)/N));end &</ @0
theata(1)=0;for i=1:101 o} bj!h]N
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) +9=p*3cnp
end% r(1)=0; 7J)a "d^e
a=zeros(101,1);c=zeros(101,1); oIu,rjb
x=zeros(101,1);y=zeros(101,1); ocDVCCkxg
a(1)=550;x(1)=-50; 0t/z "
y(1)=0; @EH4N%fH
Is#v6:#^
for i=2:100 k=2*a(i-1); cZ7F1H~
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))]; l[!C-Tq
x(i)=XY(1); y(i)=XY(2); ;Wp`th!F
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; RvgAI`T7$
i x(i) 5y
'ycTjY
y(i)end V< 9em7
plot(x，y）
