[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 8w_7O>9  
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Y值为负的那几个点是异常值 k()$:-V  
xb:&(6\F  
clc X(@uwX$m  
clear :g6n,p_#  
close all _,haD)1g~  
nx = 0:0.6:150; (UL4+ta  
n = length(nx)-1; [;A[.&6  
figure <lE?,jl  
xz = []; !4(zp;WY^  
yz = []; =-"c*^$]  
for ii = 1:n dY(;]sxFr  
    f=300; c9wfsapJ  
    h=150-nx(ii); j$Ab>}g]  
    b=atan(h/f); kLj$@E`4  
    d=(b/pi)*180 ^v&D;<&R  
    syms c i#/]KsSp  
   Y=solve(sin(c-b)-1.494*sin(3*c-pi)==0,c); 'n;OB4  
   C=double(Y); 5T@aCC@$h  
   e=(C/pi)*180; "4o=,$E=  
    x=0:0.1:0.6; A1"SLFY  
    y=(0.6-x)*tan(C); cPDQ1qre!  
    xz = [xz x+nx(ii)] ]QVNn?PA8  
    yz = [yz y]; rx0~`cVV:  
    plot(xz,yz,'k-') I%j_"r9-I  
    hold on l12{fpm  
    pause(0.01) z^<L(/rg9"  
end .,0bE  
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