[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 c
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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 x>mI$K(6M  
F0&ubspt\  
clc oCE'@}s.i  
clear Z" H;t\P  
close all &?Erkc~
#  
nx = 0:0.6:150; i,"Xw[H*s  
n = length(nx)-1; 9W(&g)`  
figure byE0Z vDM  
xz = []; l'Za"TL:  
yz = []; |15!D  
for ii = 1:n ;=IJHk1&  
    f=300; KF(y`(8f  
    h=150-nx(ii); 49>b]f,Vc  
    b=atan(h/f); Z5oDj|&l}  
    d=(b/pi)*180 C7R3W,  
    syms c {[:C_Up)f  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); t90M]EAV  
   C=double(Y); dZIbajs'  
   e=(C/pi)*180; [*It' J^  
    x=0:0.1:0.6; 6q'Q?Uw^  
    y=(0.6-x)*tan(C); |xZu?)M4  
    xz = [xz x+nx(ii)] Kyk{:UnI  
    yz = [yz y]; oB!Y)f6H1  
    plot(xz,yz,'k-') {T^D&i# o  
    hold on E0VAhN3G\  
    pause(0.01) 
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end !pRu?5  
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