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 Dp'af4+%$
2uB26SEIl
程序如下 B|w}z1.
"d*
clearclc aq**w?l
h=1000;N=100; fP*C*4#X
R=100;for i=2:101 ~z"- >.u
theata(i)=asin(sqrt((i-1)/N));end :{i mRa-
theata(1)=0;for i=1:101 imuHSxcaV
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) cW>`Z:6{K
end% r(1)=0; XwGJ 8&N
a=zeros(101,1);c=zeros(101,1); %tjEVQa
x=zeros(101,1);y=zeros(101,1); ] sIFK
a(1)=550;x(1)=-50; PkO(Y!
y(1)=0;
KX@Fgs
_J`M>W)8
for i=2:100 k=2*a(i-1); h<jIg$rA
F=[h,r(i-1)/2-r(i)/2]; XY=((k^2-norm(F)^2)/(2*k-2*norm(F)*cos(pi-theata(i))))*[cos(pi-theata(i)),sin(theata(i))]; I!%@|[ Ow
x(i)=XY(1); y(i)=XY(2); E$baQU hKS
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; U_04QwhK7
i x(i) ON^u|*kO
y(i)end g-`NsqzD
plot(x，y）
