[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 d
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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 O9h+Q\0\W  
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clc qCMl!g'  
clear  b`mj_b  
close all B5am1y{P#  
nx = 0:0.6:150; hP@(6X,"  
n = length(nx)-1; .w? .ib(  
figure Oxx^[ju~  
xz = []; N+W&NlZ   
yz = []; in%;Eqk  
for ii = 1:n X=X\F@V:u  
    f=300; c@m5~  
    h=150-nx(ii); Ze^jG-SL$9  
    b=atan(h/f); /uqu32;o  
    d=(b/pi)*180 w
Fn[9_`*  
    syms c  $6>?;  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); |BU+:+
 
   C=double(Y); k)(Biz398E  
   e=(C/pi)*180; 2s ,8R  
    x=0:0.1:0.6; uZ6d35MJ  
    y=(0.6-x)*tan(C); o@E/r.uK  
    xz = [xz x+nx(ii)] XAOak$(j  
    yz = [yz y]; e&It   
    plot(xz,yz,'k-') -0HkTY  
    hold on KU&G;ni2  
    pause(0.01) D@YP7  
end "i)Yvh[y  
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