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MathGroup Archive 2000

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Re: Repeated function evaluation?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg24235] Re: Repeated function evaluation?
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Tue, 4 Jul 2000 15:22:01 -0400 (EDT)
  • Organization: Universitaet Leipzig
  • References: <8jrcda$du2@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

if you write

f[x_,y_]:=f[x,y]=Module[{}, ..]

yes, otherwise not.

Regards
  Jens

> 
> Suppose I have a function  f[x_,y_] := Module[{ }, . . .]  where the
> module is fairly time-consuming to evaluate.
> 
> If I call this function a second time in a given notebook using
> identical values of the arguments  x  and  y , is Mathematica smart
> enough the second time around to recognize that it's already evaluated
> the function once for those arguments, and use a stored value?


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