[Date Index] [Thread Index] [Author Index]
Re: Finding length in recursive definition?
Jose Reckoner wrote: > I have something like: > f = 1 > f = 3 > f[n_] := f[n] = f[n - 1] + f[n - 2] > > and in the course of work, f[n] gets evaluated an unknown number of > times resulting in > > >>>?f > > f = 1 > f = 3 > f = 4 > f[n_] := f[n] = f[n - 1] + f[n - 2] > > I want to figure out the greatest integer n such that f[n] has already > been computed and is stored. In this case, it is 3. > > How can I do this? > > Thanks! > > Jose > Max[Cases[DownValues[f][[All,1,1,1]],_Integer]] 3 Peter