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Re: Problems defining function

  • To: mathgroup at smc.vnet.net
  • Subject: [mg40396] Re: [mg40374] Problems defining function
  • From: SONKOLY Pal <phaul at inf.elte.hu>
  • Date: Fri, 4 Apr 2003 01:21:13 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Im not sure, and i cannot reach any copy of mathematica here, but i think
it'll work if you place the condition into the argument list like this:

h[x_ /; x<0] := 0
h[x_ /; x>=0] := x

Phaul

On Thu, 3 Apr 2003, Vadim Nagornyi wrote:

> Hello,
> I am defining a function:
> h[x_]:=0/;x<0
> h[x_]:=x/;x>=0
>
> When I try to plot the function:
> Plot[h[x],{x,-1,1}]
>
> I see that it's defined as h[x_]:=x on all values, not only positive ones.
> What am I missing here?
>
> Thanks.
> Vadim.
>
>



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