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Re: Impulse Fumction using UnitStep???

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  • Subject: [mg17595] Re: [mg17557] Impulse Fumction using UnitStep???
  • From: BobHanlon at aol.com
  • Date: Mon, 17 May 1999 02:14:37 -0400
  • Sender: owner-wri-mathgroup at wolfram.com

In a message dated 5/14/99 8:16:15 AM, "heiffer"@ozemail.\"nospam\".com.au 
writes:

>i am taking a control systems course at university and i am trying to
>evaluate an impulse function [ f[t]=0 except at f[0]=1 for, say a range
>of -5 top 5 ].  
>
>i have managed to get the step and ramp functions going using the
>UnitStep function, but i could not work out the Impulse function. Any
>help would be appreciated.
>

Heath,

In addition to the UnitStep, the standard package Calculus`DiracDelta` 
includes the DiracDelta.  The impulse function is the same as a DiracDelta.

Bob Hanlon


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