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MathGroup Archive 2002

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Re: Definitions of the functions

  • To: mathgroup at
  • Subject: [mg34980] Re: [mg34963] Definitions of the functions
  • From: Hugh Walker <hwalker at>
  • Date: Mon, 17 Jun 2002 03:26:58 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

On Saturday, June 15, 2002, at 11:23 PM, Pawe³ Ga³ecki wrote:

> How do I define a function that is described by different formulas 
> depending
> of the interval which the argument is given in????
> For example:
> y=x             for  -inf<x<-5
> y=x*x          for  -5<=x<18
> y=sin x        for all the remaining values of x.
> Anybody got a clue???
> Thanks,
> Paweâ?¥ Gaâ?¥ecki

There are several ways to do this; here is one of them

func[x_]:= Sin[x];

   Hugh Walker
    Gnarly Oaks

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