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 7"}<J7 "})
FPj j1U`C
程序如下 F w ,'a
qK}4r5U
clearclc )Los\6PRn
h=1000;N=100; !YD~o/t@|
R=100;for i=2:101 'r`#u@TTZ
theata(i)=asin(sqrt((i-1)/N));end &t .9^;(
theata(1)=0;for i=1:101 &k'J5YHm8H
% r(i)=R*sqrt((i-1)/N);r(i)=sqrt(R^2/i) gG"W~O)yv
end% r(1)=0; ]|NwC <
a=zeros(101,1);c=zeros(101,1); r9!jIkILz
x=zeros(101,1);y=zeros(101,1); =.vc={_ ?
a(1)=550;x(1)=-50; 8r"$o1!
y(1)=0; Q' ? { _
h <KE)^).
for i=2:100 k=2*a(i-1); "#7~}Z B
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))]; ]ZJu
x(i)=XY(1); y(i)=XY(2); fq^D<c{3
FX=F-XY; a(i)=(norm(FX)+norm(XY))/2; 7A7=~:l\G
i x(i) *}BaO*A
y(i)end o`B,Pt5vu
plot(x，y）
