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c1=[];
c2=[];
N=100000;
a1=-pi/2+2*(pi/2)*rand(N,1);
a2=-pi/3+2*(pi/3)*rand(N,1);
a4=-pi/2+2*(pi/2)*rand(N,1);
a5=-pi/3+2*(pi/3)*rand(N,1);
b=cos(a1+a4)./10 + cos(a1)./10 + (cos(a1 + a4).*cos(a5))./5 + (cos(a1).*cos(a2))./5;
c=sin(a1+a2)./10+sin(a1+a4)./10+sin(a1)./10+sin(a1-a2)./10+(sin(a1+ a4).*cos(a5))./5;
d=sin(a2)./5 + sin(a5)./5;
c1=[c1 d]; %½«ZÖáÊýÖµ¸³Öµµ½C1ÖÐ
c2=[c2 b c]; %½«x¡¢yÖáÊýÖµ¸³Öµµ½C2ÖÐ
c11=max(c1);
c12=min(c1) %Çó³öZÖáµÄ×î´óÖµºÍ×îСֵ
% ¶¨ÒåZÖá·Ö¸ô¼ä¸ôµÄ´óС
syms derta1
% ¶¨ÒåZÖá·Ö¸ôµÄÊýÄ¿
k1=3;
xl=abs(c11-c12);    %Çó½âZ×ø±ê×î´óÖµÓë×îСֵµÄ²î
derta1=xl/k1;
c3=[c1 c2];
c4=sortrows(c3,1);
for j=1:k1-1
    c5{j}=[];
for i=1:N
if c4(i,1)<=(c12+(xl/k1)*(j+1))&&c4(i,1)>(c12+(xl/k1)*(j))
c5{j}=[c5{j};c12+derta1*(j-1) c4(i,2) c4(i,3)]; %%%%%%%%%%% ²»Í¬µã£¬¸ÄÆäºá×ø±êΪ·Ö¶ÎÊýÖµ
end
end
end

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k3=0
for j=1:k1-1
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if c4(i,1)<=(c12+(xl/k1)*(j+1))&&c4(i,1)>(c12+(xl/k1)*(j))
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c4(i,=[]
k2=i
k3=k3+1
else
    k2=k2+1
end
end
end
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end
end
end
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