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 } J`cRDO
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程序如下 f#\Nz>tOhE
!tSh9L;<O
clearclc +q%b'!&Q
h=1000;N=100; 9TZ 6c
R=100;for i=2:101 4N5\sdi
theata(i)=asin(sqrt((i-1)/N));end _h I81Lzq
theata(1)=0;for i=1:101 /z )Nz2W
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) " H]R\xp
end% r(1)=0; xKkXr-yb`f
a=zeros(101,1);c=zeros(101,1); 3:>hHQi
x=zeros(101,1);y=zeros(101,1); ]QQeUxi
a(1)=550;x(1)=-50; }1 j'
y(1)=0; ?z0W1a
"|BSGV!8
for i=2:100 k=2*a(i-1); uQ%3?bx)T
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))]; }nptmc
x(i)=XY(1); y(i)=XY(2); -56gg^Pnr
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; TPYh<p#
i x(i) U_RWqKL
y(i)end p*U!94Pb
plot(x，y）
