MATLAB: I am not getting unique random numbers from henon map??please help in this

henon mappixel scrambling

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

Best Answer

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.

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The red markers in the right column indicates that something is seriously wrong

Right click function

(There is already a function named sort in Matlab. Pick another name. )

Remove the first line (and add end as the last line).

Try

function y = my_sort( v )
    n = length( v );
    sorted = 0;
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        for j = 1:n-k
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I get

Cannot find an exact (case-sensitive) match for 'x
The closest match is: X in H:\m\cssm\X.m
Error in my_sort (line 19)
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Replace

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Best Answer

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