[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 '!8'Xo@Go3  
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Y值为负的那几个点是异常值 WCc7 MK  
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clc 9?8Yf(MC%u  
clear Gt>*y.]  
close all cB,O"-
  
nx = 0:0.6:150; HE>6A|rgDr  
n = length(nx)-1; UVND1XV^f  
figure =ELl86=CG  
xz = []; sFhmp  
yz = []; 1ztL._Td  
for ii = 1:n QahM)Gb  
    f=300; |Nx7jGd:i  
    h=150-nx(ii); KxZup\\:v  
    b=atan(h/f); 0$8iWL  
    d=(b/pi)*180 5Q
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    syms c ;Mzy>*#$Q  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); v?\Z4Z|f  
   C=double(Y); CKoRq|QG_  
   e=(C/pi)*180; wGRMv1|lIu  
    x=0:0.1:0.6; 8RGU^&  
    y=(0.6-x)*tan(C); 9fLxp$`(T  
    xz = [xz x+nx(ii)] 2`2S94'  
    yz = [yz y]; 1DzI@c~X  
    plot(xz,yz,'k-') i@Vi.oc4[  
    hold on "n,?)  
    pause(0.01) :PJ5~7C  
end P*9vs%W  
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