[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 15H6:_+=0  

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 g@v s*xE  
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clc NeOxpn[  
clear I4_d[O9  
close all LLAa1Wq  
nx = 0:0.6:150; t-e5ld~a  
n = length(nx)-1; =[tSd)D,y  
figure c|~6Ie  
xz = []; @e2}BhB2  
yz = []; viaJblYj(f  
for ii = 1:n 9}tG\0tL*  
    f=300; \ZXLX'-  
    h=150-nx(ii); X
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    b=atan(h/f); (jWss V1  
    d=(b/pi)*180 CQg X=!q  
    syms c QBJ3iQs1  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); quu*xJ;Ci  
   C=double(Y); c'fSu;1  
   e=(C/pi)*180; \' li  
    x=0:0.1:0.6; ! T9
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    y=(0.6-x)*tan(C); [w\?j,  
    xz = [xz x+nx(ii)] 3tS~:6-/  
    yz = [yz y]; 9h,u6e
 
    plot(xz,yz,'k-') H:{7X1bV  
    hold on >H|` y@]  
    pause(0.01) deX5yrvOie  
end 8cg`7(a  
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