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it is not plotting

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Meva
Meva 2015-5-9
关闭： MATLAB Answer Bot 2021-8-20
Hi,
I try this;
beta1 = 0.4*pi;
alphabar = 1;
dx=0.01;
for i=1:101
xx(i) = (i-1)*dx
end
dt=0.0001;
for nt=1:10001
t=(nt-1)*dt
...
if t==0.1
for i=1:101
t
if xx(i) < t
dp2dx(i) = -beta1-3*beta1^2.*xx(i);
else
dp2dx(i) = -beta1+2.*xx(i)*(-beta1*alphabar-1.5*beta1^2) + ...
t*2*beta1*alphabar;
end
end
figure(16)
plot(xx,dp2dx)
where xx(i) = (i-1)*0.01. But it is not plotting. Any suggestions??
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Meva
Meva 2015-5-9
编辑：Meva 2015-5-9
I now see the reason of not plotting. It is because dp2dx is 1 dimensional just a value not 1*101 array. But I have used this in a for loop. It is supposed to be 1 *101 array.
Meva
Meva 2015-5-9
I solved the problem. Thanks guys.

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