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 40M/Gu:
f ^vz
程序如下 RaX :&PE
,cF
$_7M
clearclc >3,t`Z :
h=1000;N=100; 6u6, 9VG,
R=100;for i=2:101 01br l^5K
theata(i)=asin(sqrt((i-1)/N));end ;d#`wSF`G
theata(1)=0;for i=1:101 &B c$8ZR
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) =KCAHNr4?
end% r(1)=0; vIK+18v7
a=zeros(101,1);c=zeros(101,1); o&PPW~D+h@
x=zeros(101,1);y=zeros(101,1); q_G O;-b{
a(1)=550;x(1)=-50; f:! b0j
y(1)=0; B=,j$uH
C5ia9LpRX
for i=2:100 k=2*a(i-1); # ]MV
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))]; /W @k:
x(i)=XY(1); y(i)=XY(2); )LRso>iOO
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; M{
i x(i) Y \oz9tf8
y(i)end
[<!4 a
plot(x，y）
