[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 4*]`s|fbu  

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 ~2H)#`\ac8  
%3cBhv[q4  
clc Z(FAQ\7  
clear m-K6y7t  
close all TQFD  
nx = 0:0.6:150; (fl2?d5+C  
n = length(nx)-1; g6S8@b))|  
figure Wo%&,>]<H  
xz = []; Ty5\zxC|  
yz = []; #t\Oq
9}^  
for ii = 1:n +VfJ:[q  
    f=300; qe0@tKim  
    h=150-nx(ii); t}K?.To$  
    b=atan(h/f); SU1,+7"  
    d=(b/pi)*180 HV>Wf"1  
    syms c cCwT0O#d  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); !Bd2$y.  
   C=double(Y); r\yj$Gu>(  
   e=(C/pi)*180; 8d]= +n!  
    x=0:0.1:0.6; [@(zGb8  
    y=(0.6-x)*tan(C); WWY9U  
    xz = [xz x+nx(ii)] i/->g:47P  
    yz = [yz y]; "8N]1q:$4  
    plot(xz,yz,'k-') hFKYRZtP.8  
    hold on r$+9grm<  
    pause(0.01) YEGXhn5E  
end m{' q(w}  
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