9楼: Originally posted by googon at 2020-07-01 16:26:24
你想要得到曲线是哪根呢？

8楼: Originally posted by hzlhm at 2020-06-30 19:52:46
用for循环语句和vpasolve函数联合求解。
y=-10.1:0.1:-0.1;
for i=1:length(y)
    syms x0
    y0=y(i);
    x0=vpasolve(tan(0.848*x0*sqrt(4*pi^2*y0^2/(0.09*x0^2)-1))==sqrt((0.09*x0^2-0.36*pi^2*y0^2) ...