[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 Sxf<8Px9i  

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 ,Q >u N  
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clc _T8#36iR  
clear CzST~*lH  
close all YD7i6A  
nx = 0:0.6:150; D_(xhM
  
n = length(nx)-1; =w_y<V4  
figure uFL~^vz  
xz = []; 4E&URl0Bh  
yz = []; >mi%L3P
k  
for ii = 1:n xG\&QE  
    f=300; Bp>%'L  
    h=150-nx(ii); "JKrbgN@;L  
    b=atan(h/f); ld$LG6[PA  
    d=(b/pi)*180 OGrp{s  
    syms c ={YW*1Xw  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); 0;}
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   C=double(Y); b.Z K1  
   e=(C/pi)*180; F+v?2|03  
    x=0:0.1:0.6; lmo>z'<  
    y=(0.6-x)*tan(C); >}43MxU?  
    xz = [xz x+nx(ii)] K{t7_i#tv  
    yz = [yz y]; qun#z$  
    plot(xz,yz,'k-') /`?i&\C3r  
    hold on ?_(0cVi  
    pause(0.01) z?Hvh  
end N9Y,%lQ|B8  
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