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Re: About UnitStep and ZeroValue


Perhaps:

   Unprotect[UnitStep]
   UnitStep[0]=3;
   Protect[UnitStep]



solidifire wrote:
> In Mathematica 3.0, UnitStep is defined in package
> Calculus`DiracDelta`
> and there is an option named ZeroValue, which enables the user to
> define
> the value of UnitStep[0].
> 
> http://documents.wolfram.com/v3/AddOns/Calc_DiracDelta-.html
> or
> http://tinyurl.com/35rtl7
> 
> In Mathematica 5.0, UnitStep is a built-in function and the default
> value of UnitStep[0] is 1. It seems that ZeroValue is no longer
> accessible. Is there any method of changing this default value?
> 
> Thank you in advance.
> 
> 

-- 
Murray Eisenberg                     murray at math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower      phone 413 549-1020 (H)
University of Massachusetts                413 545-2859 (W)
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