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MathGroup Archive 1995

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UnitStep Argument

  • To: mathgroup at
  • Subject: [mg628] UnitStep Argument
  • From: "Roger M. Jones" <rmj at LLEWELYN.SLAC.STANFORD.EDU>
  • Date: Sat, 01 Apr 1995 14:00:08 -0800

How can I define
UnitStep[-x], so that the answer is zero
(.i.e. assign x as being a positive number).

x/:Positive[x]=True doesn't work.

Many thanks.


(rmj at

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