Are you sure you have a problem with your code? I increased N to 16000, and plotted your data. It sure looks like a Hénon attractor to me.
I am not getting unique random numbers from henon map??please help in this
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VINAY KUMAR SHARMA
el 19 de Dic. de 2017
Comentada: VINAY KUMAR SHARMA
el 20 de Dic. de 2017
my code is here
if true
% code
N=16;
a=1.4;
b=0.3;
x=zeros(1,N);
y=zeros(1,N);
x(1)=0.63154*(10^(-11));
y(1)=0.18906*(10^(-11));
for i=1:N
x(i+1)=1+y(i)-a*((x(i))^2);
y(i+1)=b*x(i);
end
plot(x,y)
for j=0:(N/2)-1
q(2*j+1)=x(j+1);
q(2*j+2)=y(j+1);
end
d=floor(q*(10^15));
s=mod(d,N);
end
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the cyclist
el 19 de Dic. de 2017
Editada: the cyclist
el 19 de Dic. de 2017
4 comentarios
the cyclist
el 19 de Dic. de 2017
Can you add some more detail? I don't understand why you expect non-repeating values in s, so it is not possible for me to help you.
Are you trying to produce pseudorandom numbers from the Hénon map? (Numbers if pseudorandom sequences can repeat. Just not in a predictable way, ideally.)
Do you have some reference? Are you trying replicate some results from a paper or a textbook?
It might be that your code is mathematically correct, but there are nuances with doing floating point math.
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