       Re: rect(x) and tri(x)

• To: mathgroup at smc.vnet.net
• Subject: [mg31491] Re: rect(x) and tri(x)
• From: "Steve Luttrell" <luttrell at signal.qinetiq.com>
• Date: Thu, 8 Nov 2001 04:54:31 -0500 (EST)
• Organization: Defence Evaluation & Research Agency
• References: <9sb4cs\$d0d\$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

"Marcus Fin" <marco_pinna at ieee.org> wrote in message
news:9sb4cs\$d0d\$1 at smc.vnet.net...
> someone may help me to realize rect(x) e tri(x) functions with Mathematica
?
> I thank you in advance.

I am making a guess at what your rect and tri functions are, but here is how
I would define them:

rect[x_]:=0/;Abs[x]>1;
rect[x_]:=1/;Abs[x]<=1;
tri[x_]:=0/;Abs[x]>1;
tri[x_]:=1-Abs[x]/;Abs[x]<=1;

You can then check what they look like by doing the following plots:

Plot[rect[x],{x,-3,3}];
Plot[tri[x],{x,-3,3}];

--
Steve Luttrell
QinetiQ
Malvern Technology Centre
UK

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