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implementation of iterative function

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shivani
shivani on 19 Mar 2015
Commented: shivani on 19 Mar 2015
How can we implement the iterative function F(x)= [((1-2*q)*(x-q))/(p-q)]+q we have to iterate it for some values of i and generate the values of xi where xi=F(xi-1). initially let.

Accepted Answer

Torsten
Torsten on 19 Mar 2015
n=...;
p=...;
q=...;
x0=...;
f=@(x)(1-2*q)*(x-q)/(p-q)+q;
for ii=1:n
xnew=f(xold);
xold=xnew;
end
Best wishes
Torsten.
  8 Comments
Torsten
Torsten on 19 Mar 2015
Im=imread();
[n m]=size(A);
L=m*n;
x0=0.27;
p=0.4;
q=0.1;
xold=x0;
output=zeros(L);
output(1)=xold;
f=@(x)(1-2*q)*(x-q)/(p-q)+q;
for ii=1:L-1
xnew=f(xold);
xold=xnew;
output(ii+1)=xold;
end
Note that xold becomes bigger and bigger during the Iteration such that you may get xold=Infinity if L is large enough.
Best wishes
Torsten.

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