把polar(b,p)移到end上面，然后再在end上面加一句hold on试试
更多追问追答
追问
b=[];
p=[];
L=180;
R=50;
for i=1:1000
y=integral(@(t)sqrt(1+(pi*pi/25)*cos(pi*t/1000)^2),0,i);
b=0.00*y;
r=-((1+(pi*pi/25)*cos(pi*i/1000)^2)^(1.5))/((pi*pi*pi*i/12500)*sin(pi*i/1000));
a=asin(L/r);
s=b*tan(a);
p=R+s;
polar(b,p)
hold on
end
好像还是不行，我对MATLAB完全不懂，只是需要画一个图
追答
b=[];
p=[];
L=180;
R=50;
for i=1:1000
y=integral(@(t)sqrt(1+(pi*pi/25)*cos(pi*t/1000).^2),0,i);
b(i)=0.00*y;
r=-((1+(pi*pi/25)*cos(pi*i/1000)^2)^(1.5))/((pi*pi*pi*i/12500)*sin(pi*i/1000));
a=asin(L/r);
s=b(i)*tan(a);
p(i)=R+s;
end
polar(b,p)
b=[];
p=[];
L=180;
R=50;
for i=1:1000
y=integral(@(t)sqrt(1+(pi*pi/25)*cos(pi*t/1000).^2),0,i);
b(i)=0.00*y;
r=-((1+(pi*pi/25)*cos(pi*i/1000)^2)^(1.5))/((pi*pi*pi*i/12500)*sin(pi*i/1000));
a=asin(L/r);
s=b(i)*tan(a);
p(i)=R+s;
end
polar(b,p)
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