Re: recursive blues :(

• To: mathgroup at smc.vnet.net
• Subject: [mg70298] Re: [mg70282] recursive blues :(
• From: gardyloo <gardyloo at mail.wsu.edu>
• Date: Thu, 12 Oct 2006 05:37:08 -0400 (EDT)

```It looks to me as though it does, if you fix the inequalities in the
definition:

f[x_] := Piecewise[{{f[x + 2], x < -0.5},
{2, -0.5 <= x <= 0.5}, {1, Inequality[0.5, Less, x,
LessEqual, 1.5]}, {f[x - 2], x > 1.5}}]

Best of luck!

n00dle0 at yahoo.com wrote:
> Hi,
>
> Why doesn't the following function represent a recurvive and periodic
> function?
>
> \!\(\*
>   RowBox[{\(f[x_]\), " ", ":=", " ",
>     RowBox[{"\[Piecewise]", GridBox[{
>           {\(f[x + 2]\), \(x < \(-0.5\)\)},
>           {"2", \(\(-0.5\) = \ x = 0.5\)},
>           {"1", \(0.5 < x = 1.5\)},
>           {\(f[x - 2]\), \(x > 1.5\)}
>           }]}]}]\)
>
>
> What are all possible ways to represent periodic functions?
>
> Thanks,
> Ash
>
>
>

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```

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