Re: Re: question about nest
- To: mathgroup at christensen.cybernetics.net
- Subject: [mg1973] Re: [mg1961] Re: question about nest
- From: Lou Talman <me at talmanl.mscd.edu>
- Date: Wed, 30 Aug 1995 01:51:02 -0400
In article <DDsGrD.Gy6 at wri.com>,
ORLANDO LUIS GOULART PERES <orlando at axp.ift.unesp.br> wrote:
>I have a function with two variables
>And I need the n-compose function
>But Mathematica look for a function f[x] and not f[x,a]
>Is this possible to use Nest with this two variable function?
>For example, I need
>f[x,a], f[f[x,a],a], f[f[f[x,a],a],a] .
>Later I will put many values for "a" .
Seems to me the easiest thing to do is:
Clear[f, a, x]
f[x_] := a x (1 - x)
The use of SetDelayed in the definition of the function 'f' assures that
the current value of 'a' will always be used when 'f[x]' is evaluated.
Now assign the desired value to the variable 'a' and apply Nest or
NestList[f, x, n]
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