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 M^&^ g
>sGiDK @
程序如下 v ;nnr0;
SUb:0GUa
clearclc S[e> 8
h=1000;N=100; &a 'mh
R=100;for i=2:101 q\G7T{t$.
theata(i)=asin(sqrt((i-1)/N));end Q"s]<MtdS
theata(1)=0;for i=1:101 @M*oq2U;
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) >aAsUL5W
end% r(1)=0; IP!`;?T=
a=zeros(101,1);c=zeros(101,1); i<M
F8 $
x=zeros(101,1);y=zeros(101,1); @Yw >s9X
a(1)=550;x(1)=-50; qK)T# sh
y(1)=0; y-uSpW
he|.Ow
for i=2:100 k=2*a(i-1); qm6 X5T
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))]; Y^QG\6q
x(i)=XY(1); y(i)=XY(2); }_oQg_-7e
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; 629ogJo8
i x(i) .wPI %5D
y(i)end ,0@QBr5P
plot(x，y）
