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MathGroup Archive 2007

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Re: question (for Mathematica 6!)

  • To: mathgroup at smc.vnet.net
  • Subject: [mg75597] Re: question (for Mathematica 6!)
  • From: Bhuvanesh <lalu_bhatt at yahoo.com>
  • Date: Sun, 6 May 2007 01:49:37 -0400 (EDT)

The issue was that UnitStep was being used sometimes as a piecewise function and sometimes as a distribution. HeavisideTheta was introduced to take on the distribution role, so that UnitStep is now just a piecewise function. Also, UnitStep[0] returns 1, whereas HeavisideTheta[0] returns unevaluated.

Bhuvanesh,
Wolfram Research


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