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MathGroup Archive 2001

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


Then look at

In[2]:=
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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