MathGroup Archive 1997

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Divergence and Dirac Delta Function



> Axel Schwalm wrote:
> Dear Elvis,
> whether You get "1" or "4*Pi" as a result from considering vector 
> matters, depends on the unit-system You make use of (SI- or Gaussian 
> system, physically speaking).

Yes, except that Elvis Dieguez wrote:

> >if I tell Mathematica to compute the
> >divergence of:      unit vector(r) / r^2 it will return the value of
> >*zero.*

[italics added by Alan]



  • Prev by Date: Re: A generalized Transpose?
  • Next by Date: Re: Another Bug in Mathematica 3.0.0 definite integration
  • Previous by thread: Re: Re: Divergence and Dirac Delta Function
  • Next by thread: Re: Re: Re: Divergence and Dirac Delta Function