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MathGroup Archive 1997

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UnitStep problem

  • To: mathgroup at smc.vnet.net
  • Subject: [mg9251] UnitStep problem
  • From: henrik at DeepThought.home (Henrik Seidel)
  • Date: Fri, 24 Oct 1997 01:01:04 -0400
  • Organization: Technical University of Berlin, Germany
  • Sender: owner-wri-mathgroup at wolfram.com

When I use the example

Table[UnitStep[x], {x, -3, 3}]

I get

{UnitStep[-3],UnitStep[-2],UnitStep[-1],UnitStep[0],UnitStep[1],
  UnitStep[2],UnitStep[3]}

and not

{0, 0, 0, 1, 1, 1, 1}

as the example in the online help suggests.  DiracDelta[1] yields 0,
i.e. UnitStep should be defined (this was just a test whether or not
the package is loaded).

What is the problem?

Please respond by email, as well.

Regards
				--- Henrik
-- 
Henrik Seidel, http://itb.biologie.hu-berlin.de/~henrik/ HU Berlin,
Innovationskolleg Theoret. Biologie, Invalidenstr. 43 10115 Berlin,
GERMANY, tel: +49-30-2093-9108 fax: +49-30-2093-8801 see my home page
for my public PGP key


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