[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 ?w@KF%D
 

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 5U(ry6fI=  
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clc [2zS@p  
clear Eb\SK"8  
close all n UD;y}}n  
nx = 0:0.6:150; |B@\Nf7  
n = length(nx)-1; TfFH!1^+  
figure rcj
j( C  
xz = []; qg8T}y>  
yz = []; N>+L?C  
for ii = 1:n Pb@9<NXm'  
    f=300; 7_AcvsdW  
    h=150-nx(ii); 0p ZX_L'  
    b=atan(h/f); ;=?KQq f  
    d=(b/pi)*180 [d,"
)
Ng  
    syms c cvQMZ,p  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); Fu#mMn0c  
   C=double(Y); nHmi%R7k  
   e=(C/pi)*180; ZG)%vB2c  
    x=0:0.1:0.6; a`uHkRX )U  
    y=(0.6-x)*tan(C); AP_2.V=Sn  
    xz = [xz x+nx(ii)] F /% 5 r{  
    yz = [yz y]; `Ui|T  
    plot(xz,yz,'k-') @K.[;-;g  
    hold on iMr/i?`i  
    pause(0.01) bZ*J]1y(.  
end A{b?ZT~2]  
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