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Re: question (for Mathematica 6!)

• To: mathgroup at smc.vnet.net
• Subject: [mg75556] Re: [mg75519] question (for Mathematica 6!)
• From: Sseziwa Mukasa <mukasa at jeol.com>
• Date: Sat, 5 May 2007 05:58:44 -0400 (EDT)
• References: <200705040809.EAA04730@smc.vnet.net>

On May 4, 2007, at 4:09 AM, dimitris wrote:

> I don't have a copy of Mathematica 6 but having spent much time
> reading the online documentation (not only because of curiosity!) I
> have one question...
>
> Can somebody explain me the introduction of the HeavisideTheta
> function
>
> http://reference.wolfram.com/mathematica/ref/HeavisideTheta.html
>
> in version 6?
>
> Note that the UnitStep function is still here
>
> http://reference.wolfram.com/mathematica/ref/UnitStep.html

The value of HeavysideTheta[x] is not defined for x = 0, UnitStep[0]  
is 1.

The difference is necessary for correct analysis.

Regards,

Ssezi

• References:
  • question (for Mathematica 6!)
    • From: dimitris <dimmechan@yahoo.com>