[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 BvsSrse  

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 OxYAM,F  
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clc /IG{j}  
clear ,f2oO?L}  
close all
Q"ZpT  
nx = 0:0.6:150; 4~&3.1  
n = length(nx)-1; a_V\[V{R=  
figure .wD $Bsm`t  
xz = []; >x JzV  
yz = []; ":8\2Qp  
for ii = 1:n ;aV3j/  
    f=300; 9xO@_pkX  
    h=150-nx(ii); @<{%
r  
    b=atan(h/f); kqm(D#  
    d=(b/pi)*180 DH yv^  
    syms c Q(]m1\a  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); k9f|R*LM  
   C=double(Y); h@Ea5x  
   e=(C/pi)*180; jwT` Z  
    x=0:0.1:0.6; zQ|2D*W  
    y=(0.6-x)*tan(C); `VKFA<T  
    xz = [xz x+nx(ii)] R\5,H!V9n  
    yz = [yz y]; ?a3wBy  
    plot(xz,yz,'k-') \^*:1=|7u]  
    hold on &J
&'J~N  
    pause(0.01) *:@KpYWx"  
end o 2Nu@^+  
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