[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 5W(G~m?jC6  

图片:})WX7H~ND~3OE[$Y(~WEX_R.png

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Y值为负的那几个点是异常值 7`thM/fN  
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clc y?zNxk/p  
clear eZ8~t/8  
close all %lF}!  
nx = 0:0.6:150; :RBp  
n = length(nx)-1; hWP$U  
figure :U$<h  
xz = []; [yF>W$Bn%  
yz = []; |kB1>$  
for ii = 1:n 0Rz'#O32V  
    f=300; /J")S?. [u  
    h=150-nx(ii); ""|vhgP  
    b=atan(h/f); tF}Vs}  
    d=(b/pi)*180 NifzZEX  
    syms c S:"R/EE(  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); wi-O}*O   
   C=double(Y); ?j6?KR@#  
   e=(C/pi)*180; K; ,2ag  
    x=0:0.1:0.6; @8a1a3_F  
    y=(0.6-x)*tan(C); J5b>mTvb  
    xz = [xz x+nx(ii)] +KGZk?%
  
    yz = [yz y]; ^@5#jS2  
    plot(xz,yz,'k-') f mXU)  
    hold on U{6i5;F#H  
    pause(0.01) |E/U(VS3l~  
end 6Ef
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