Re: question about nest

*To*: mathgroup at christensen.cybernetics.net*Subject*: [mg1955] Re: question about nest*From*: Sigurd.Schelstraete at rug.ac.be (Sigurd Schelstraete)*Date*: Sat, 26 Aug 1995 00:10:29 -0400*Organization*: University of Ghent, Belgium

ORLANDO LUIS GOULART PERES (orlando at axp.ift.unesp.br) wrote: : Dear Wizards : 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" . : Regards : Orlando Peres You could try the following: Nest[f[#,a]&,x,n] For n=3 for instance, this gives: f[f[f[x,a],a],a] Sigurd Schelstraete University of Gent Belgium