[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 k<Y}BvAYB  
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Y值为负的那几个点是异常值 [-5l=j r  
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clc *GZ7S m  
clear bMA\_?  
close all d`w3I`P1  
nx = 0:0.6:150; .!`y(N0hc  
n = length(nx)-1; pdw;SIoC  
figure +A;AX.mr  
xz = []; fb=[gK#*,  
yz = []; y/.I<5+Bu  
for ii = 1:n dED&-e#  
    f=300; VYo2m  
    h=150-nx(ii); (r
9W[  
    b=atan(h/f); 2Wx~+@1y  
    d=(b/pi)*180 -d*zgP  
    syms c E,}(jAq7  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); 2(i@\dZCb<  
   C=double(Y); =C(((T.  
   e=(C/pi)*180; Y& p ~8  
    x=0:0.1:0.6; )azK&f@tR|  
    y=(0.6-x)*tan(C); 1sIPhOIys  
    xz = [xz x+nx(ii)] GbwqrH+  
    yz = [yz y]; U/s!Tb>`  
    plot(xz,yz,'k-') olxnQYFo  
    hold on gucgNpX  
    pause(0.01) %7v!aJ40  
end 2v\<MrL  
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