[求助]matlab编程绘图，三角函数，菲涅尔 [复制链接]

程序有问题，在140.4、139.8、132等点处有异常值，请教一下大家怎么改，应该是Y=…那一步的式子有问题，谢谢 $Op/5j  
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Y值为负的那几个点是异常值 4G;`KqR@  
A]SB c2  
clc |E_+*1lq.  
clear xU\:Vid+A  
close all 9J;H.:WH  
nx = 0:0.6:150; fssL'DD  
n = length(nx)-1; [vjkU7;7A  
figure 9 <kkzy  
xz = []; s<r.+zqW  
yz = []; <T.3ZZ%  
for ii = 1:n CO%O<_C  
    f=300; "w|k\1D  
    h=150-nx(ii); BE2\?q-  
    b=atan(h/f); FO'. a  
    d=(b/pi)*180 'xrbg]b%  
    syms c z5*O@_r+.b  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); 4;c_%=cU  
   C=double(Y);
Ko]h r  
   e=(C/pi)*180; ~tj7zI6  
    x=0:0.1:0.6; _Fh0^O@  
    y=(0.6-x)*tan(C); n,Mw# r?y  
    xz = [xz x+nx(ii)] %{VI-CQ  
    yz = [yz y]; +!V%Q  
    plot(xz,yz,'k-') ]MA)='~  
    hold on TcKKI  
    pause(0.01) NW>:Lz ?"  
end _467~5JkU  
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