       Re: square wave function

• To: mathgroup at smc.vnet.net
• Subject: [mg31692] Re: [mg31663] square wave function
• From: Tomas Garza <tgarza01 at prodigy.net.mx>
• Date: Sat, 24 Nov 2001 16:44:09 -0500 (EST)
• References: <200111231046.FAA24071@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```Yes. Perhaps you may try

In:=
f[x_] := Mod[x, 2] - 1

Then look at

In:=
Plot[Sign[f[x - 1]], {x, -10, 10}]

Tomas Garza
Mexico City
----- Original Message -----
From: "Peter Dimitriou" <peterangelo at mindspring.com>
To: mathgroup at smc.vnet.net
Subject: [mg31692] [mg31663] square wave function

> To all who responded last time I posted, thank you, I was able to
> resolve that on my own.
>
> My new Question deals with the following lines of Mathematica code:
>
>
> Clear[square]
> square[x_] := 1 /; 0<x<1
> square[x_] := -1 /; -1<x<0
>
> Plot[square[x], {x,-1,1}]
>
> This defines and plots a square wave of period 2 between -1 and 1.
> The question is how do I define this for all x (-inf<x<inf, with
> period 2) in Mathematica?  The Only hint I get is to consider using
> the Mod function.  Scratched my head long enough anyone out there
> willing to help?
>
> Peter
>

```

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