Re: question about nest
- To: mathgroup at christensen.cybernetics.net
- Subject: [mg1952] Re: question about nest
- From: jfs at he3.neep.wisc.edu (John F. Santarius)
- Date: Sat, 26 Aug 1995 00:09:57 -0400
- Organization: University of Wisconsin
In article <DDsGrD.Gy6 at wri.com> ORLANDO LUIS GOULART PERES <orlando at axp.ift.unesp.br> writes:
I have a function with two variables
f[x_,a_]:=a*x*(1-x)
And I need the n-compose function
Nest[f,x,n]
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" .
Try Nest[ f[#,a]&, x, n ]. For example,
In[1]:= f[x_,a_] := a x (1-x)
In[2]:= Nest[ f[#,a]&, x, 2 ]
2
Out[2]= a (1 - x) x (1 - a (1 - x) x)
==============================================================================
John F. Santarius, Fusion Technology Institute, University of Wisconsin,
1500 Engineering Dr., Madison, WI 53706, USA
E-mail: santarius at engr.wisc.edu Ph: 608/263-1694 Fax: 608/263-4499
==============================================================================
--
==============================================================================
John F. Santarius, Fusion Technology Institute, University of Wisconsin,
1500 Engineering Dr., Madison, WI 53706, USA
E-mail: santarius at engr.wisc.edu Ph: 608/263-1694 Fax: 608/263-4499
==============================================================================