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Question: Is well defined this "recursive" function?

Question:Is well defined this "recursive" function?

Gonzalo Garcia 155 Maple 17
procedure recursion
May 05 2019
0

Hi!

Let F(z) (with z complex) a given function. I want to compute F^n(z0), i.e. the composition of F with itself n-times, where z0 is a given point (complex).

Is correct the following procedure to compute F^k(z0)?

App := proc (k, z0) local z1, z2, j; z1 := z0; z2 := NULL; for j to k do z2 := F(z1); z1 := z2 end do; return z2 end proc

 

Many thanks in advance for your comments.
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