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Re: Simple Recursive Map


Hi,

iter[{x_, y_}, {a_, b_}] := {y - a*x^2 - 1, b*x}

Nest[iter[#, {a, b}] &, {x0, y0}, 50]

?

Regards
  Jens

Reuben wrote:
> 
> I have the map
> 
> x_n+1=y_n-a*(x_n)^2 - 1
> y_n+1=b*x_n
> 
> If I specify a,b, x_0 and y_0, how can I make Mathematica iterate
> through this numerically to give me x_50 and y_50?
> 
> Thanks
> Reuben


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