[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 XN,,cU  
A"Q@W<.  
Y值为负的那几个点是异常值 woq)\;CK  
69#8Z+dw7  
clc mDFlz1J,e  
clear 8&V_$+U  
close all H(Ms^8Vs~:  
nx = 0:0.6:150; t5 a7DD  
n = length(nx)-1; djT5X  
figure VhEMk\  
xz = []; Mp\<cE  
yz = []; ^%y
`u1ab  
for ii = 1:n g<\z=H  
    f=300; FbACTeB  
    h=150-nx(ii); =neL}Fav56  
    b=atan(h/f); 8
cHE[I  
    d=(b/pi)*180 u1K\@jlw  
    syms c AY_Q""v  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); P,bd'  
   C=double(Y); )y7_qxwbV  
   e=(C/pi)*180; D&hqV)d4R  
    x=0:0.1:0.6; L(&}Wv  
    y=(0.6-x)*tan(C); 6Gn4aso
A  
    xz = [xz x+nx(ii)] /-0' Qa+*  
    yz = [yz y]; Y@F  
    plot(xz,yz,'k-') }fhHXGK.  
    hold on ]B9 ^3x[:  
    pause(0.01) +?`b=6e(`  
end !d9AG|  
'PdmI<eXQ  
2H?d+6Pt3  
3]E(mRX  
JhR W[~