[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 j\@&poJ(,  
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Y值为负的那几个点是异常值 j3R}]F'C*  
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clc FbCuXS=+`  
clear }+:X=@Z@  
close all 8qUNh#  
nx = 0:0.6:150; ayg^js2,  
n = length(nx)-1; gP!k[E,Q8  
figure Kciz^)'Z  
xz = []; a 4?c~bs  
yz = []; eV9,G8  
for ii = 1:n usU6,  
    f=300; 4^^=^c  
    h=150-nx(ii); Sq`Zu
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    b=atan(h/f); 0Y!~xyg/  
    d=(b/pi)*180 i66/2BUh.  
    syms c Pp;OkI``[  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); Q+IB&LdE  
   C=double(Y); ,H/BW`rL]#  
   e=(C/pi)*180; ,y)V5 c1  
    x=0:0.1:0.6; .
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    y=(0.6-x)*tan(C); uOx"oR|  
    xz = [xz x+nx(ii)] (ul_bA+  
    yz = [yz y]; )SaMfP1=v  
    plot(xz,yz,'k-') s+0S,?{$  
    hold on Tog'3k9Uw  
    pause(0.01) \mFgjPz  
end HC$}KoZkC  
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