[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 Xv*}1PZH  

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 . z].:$J&  
X4 Y
 
clc V@Kn24''  
clear r+TK5|ke  
close all e7's)C>/'  
nx = 0:0.6:150; 8vO;IK]9b^  
n = length(nx)-1; :Fo4O'UC  
figure -=>U =|  
xz = []; :B+Rg cqi  
yz = []; O$(c.(_$  
for ii = 1:n sr4jQo  
    f=300; yI:r7=KO  
    h=150-nx(ii); $Br>KJ%'g  
    b=atan(h/f); 2b!j.T#u  
    d=(b/pi)*180 ,N0uR@GN  
    syms c l-MxLcz  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); Wv NI=>  
   C=double(Y); ,P!D-MN$V  
   e=(C/pi)*180; fK);!Hh  
    x=0:0.1:0.6; C;%Y\S  
    y=(0.6-x)*tan(C); 1h{>[ 'L  
    xz = [xz x+nx(ii)] >.n;mk  
    yz = [yz y]; kLq(!Gs  
    plot(xz,yz,'k-')
EM=xd~H  
    hold on 44Q9*."  
    pause(0.01) )]tvwEo  
end p}&Md-$1  
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