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MathGroup Archive 1991

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  • To: mathgroup at
  • Subject: DeltaTheta
  • From: Pekka Janhunen <pjanhune at>
  • Date: Mon, 14 Oct 91 10:34:38 +0200

Michael Prange, prange at wrote:

> Is there a package which includes step functions, delta functions, and
> the integrals and derivatives of these functions combined with other
> functions?

I wrote a package DeltaTheta.m about a year and a half ago. You can
FTP it from, /UNIX/Symbolic/Mathematica/Packages/JANHUNEN,
or from, /pub/sci/math/mathematica/PJ. It has not yet been
tested on Mma 2.0.
Pekka Janhunen, Finnish Meteorological Institute, Geophysics Department
email: pjanhune at

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