[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 GJC!0{8;  
:dY.D|j*  
Y值为负的那几个点是异常值 =mKfFeO.  
~KAp\!,  
clc HPtTv}l  
clear %tzN@  
close all X,WQ'|rC  
nx = 0:0.6:150; R3B5-^s
 
n = length(nx)-1; )IFl 0<d  
figure C#U<k0R  
xz = []; 5\akI\  
yz = []; Uz6{>OCvk|  
for ii = 1:n p}YI#f in/  
    f=300; Qp kKVLi  
    h=150-nx(ii); vzY'+9q1.  
    b=atan(h/f); Q7~'![(a  
    d=(b/pi)*180 yu`KzIU  
    syms c z(g%ue\  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); MAE7A"la  
   C=double(Y); $ \Q<K@{  
   e=(C/pi)*180; Vs_\ykO  
    x=0:0.1:0.6; (dzH3_U  
    y=(0.6-x)*tan(C); 3>-[B`dD(  
    xz = [xz x+nx(ii)] FOOQ'o[}  
    yz = [yz y]; @-'/__cgt  
    plot(xz,yz,'k-') /S:w
&5e  
    hold on R'Kt=.s<  
    pause(0.01) LP^p~5Az  
end 5h`m]#YEG  
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