[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 2[=3-1c  

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 `#W+pO  
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clc )2l @%?9  
clear cR!M{U.q  
close all x8C\&ivn  
nx = 0:0.6:150; y'b*Dk{  
n = length(nx)-1; boDD?0.|  
figure +w.$"dF!  
xz = []; 6&;GC<].(y  
yz = []; S,5>/'fy0  
for ii = 1:n |ssl0/nk  
    f=300; LauGT* z!  
    h=150-nx(ii); xR kw+  
    b=atan(h/f); Xm|~1 k_3  
    d=(b/pi)*180 ?%~^PHgZ|  
    syms c CLmo%"\s  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); rp"5176  
   C=double(Y); jTg~]PQ^  
   e=(C/pi)*180; PW5)") z  
    x=0:0.1:0.6; =NY55t.  
    y=(0.6-x)*tan(C); X=1o$:7  
    xz = [xz x+nx(ii)] $mAC8a_Zu  
    yz = [yz y]; #Ff8_xhP2  
    plot(xz,yz,'k-') ?Be}{Qqlg  
    hold on opm_|0  
    pause(0.01) &
b^~0Z  
end (K8Ob3zN_  
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