[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 sa\|"IkD2  
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Y值为负的那几个点是异常值 `?Y_0Nh>  
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clc G_7ks]u-  
clear j TB<E=WC  
close all "<g?x`iz  
nx = 0:0.6:150; -oaG|  
n = length(nx)-1; wj5qQ]WC  
figure *!wO:<-  
xz = []; i-K"9z|)  
yz = []; Kt/+PS  
for ii = 1:n Q"l"p:n%n  
    f=300; .(gT+5[  
    h=150-nx(ii); < e7<t9  
    b=atan(h/f); ZC9.R$}Kl  
    d=(b/pi)*180 lEVQA*u[  
    syms c dA_V:HP  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); P!>{>r4  
   C=double(Y); R &1mo  
   e=(C/pi)*180; 0C"PC:h5  
    x=0:0.1:0.6; /eU1(oo&`5  
    y=(0.6-x)*tan(C); D:RBq\8  
    xz = [xz x+nx(ii)] /w}B07.  
    yz = [yz y]; O[5_9W 4  
    plot(xz,yz,'k-') y.ivz  
    hold on Wzf1-0t  
    pause(0.01) ~T p8>bmSR  
end XeIUdg4>R  
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