[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 Qg _?..%  

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 r%'2a+}D  
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clc nhCB])u8l  
clear I"JT3[*s  
close all  "rjJ"u1  
nx = 0:0.6:150; n(f&uV_):  
n = length(nx)-1; 1=(i{D~  
figure XLbrE|0A?  
xz = []; #G{T(0<F  
yz = []; L6A6|+H%E  
for ii = 1:n [bT@Y:X@`  
    f=300; ?I/,r2ODLh  
    h=150-nx(ii); 3^su%z_%  
    b=atan(h/f); 6y5arP*6e  
    d=(b/pi)*180 #lLL5ji  
    syms c d=4MqX r  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); 
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   C=double(Y); kb7\qH!n  
   e=(C/pi)*180; _Wb-&6{  
    x=0:0.1:0.6; Mc6Cte]3|  
    y=(0.6-x)*tan(C); w6"LHy[  
    xz = [xz x+nx(ii)] _1R`xbV  
    yz = [yz y]; wc,y+C#V  
    plot(xz,yz,'k-') !6 $>|  
    hold on v}Aw!Dv/  
    pause(0.01) Zz3#Kt5t3  
end t=e0z^2i+  
wA~Nfn ^  
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