Breakthrough Signal Processing Pack Offers Outstanding Collection of
Symbolic Functions

The Mathematica Signals and Systems Pack seamlessly integrates high-
powered numeric and graphic capabilities with a robust collection of
symbolic functions not traditionally found in today's engineering
software.

Champaign, Illinois - October 16, 1995 - Wolfram Research today introduced
the newest member of its growing Applications Library, the Mathematica
Signals and Systems Pack, a comprehensive set of tools specifically
tailored for signal processing. The pack combines innovative symbolic
functions with powerful numeric and graphic capabilities that extend the
domain of signal processing software to a wide variety of techniques
engineers are finding increasingly useful. From expressing and modifying
signals of infinite extent to performing operations on nonseparable
multidimensional signals, engineers and educators will embrace the pack's
outstanding symbolic capabilities which are absent in traditional signal
processing software.

Dr. Brian L. Evans, founder of Evans Software, Berkeley, California,
developed the pack in cooperation with Wolfram Research. Under the
guidance of Georgia Tech Professor James H. McClellan, a pioneer in
digital filter design, Evans created the original Mathematica packages and
notebooks that became the framework for the Signals and Systems Pack.
Evans said he was prompted to develop the pack because he saw a gap in
signal processing software.

"Over the past few years performing algebraic manipulations on signals and
systems have become increasingly useful in signal processing. A good
example of this might be computing forward and inverse linear transforms
in their exact symbolic form," Evans said. "However, the signal processing
software on the market hasn't fulfilled this need, at least not until we
developed the Signals and Systems Pack. The pack excels in symbolic
computation and in explaining the answers. This allows engineers greater
flexibility in the kind of analysis they can perform and increases their
productivity."

Roberto Bamberger, a professor in the school of electrical engineering and
computer science at Washington State University, has used Mathematica for
seven years and plans to integrate the pack into his curriculum and
research.

"One great advantage of the combination of Mathematica and the Signals and
Systems Pack is the easy-to-use notebook interface," Bamberger said.
"Mathematica's on-line notebooks are interactive and allow you to enter
signal processing expressions the same way you would enter them by hand.
This makes the Signals and Systems Pack an excellent tutorial system for
the beginning student and the seasoned professional alike."

Based on the powerful technical computing engine of Mathematica, the
Signals and Systems Pack is written in the Mathematica language, and the
source code is included. The system is therefore completely open and
extensible, and any of its functions can be modified to meet the user's
specific needs.

The Mathematica Applications Library

The Signals and Systems Pack is part of the growing Mathematica
Applications Library, a collection of specialized packages created by
independent or Wolfram Research developers with extensive experience in
their fields. Wolfram Research offers add-on packs in areas such as
electrical engineering, mechanical analysis, fuzzy logic, optical design,
statistics, and finance.

Availability

The Signals and Systems Pack runs on Microsoft Windows, Windows NT,
Macintosh, Power Macintosh, Sun SPARC Solaris, Silicon Graphics,
Hewlett-Packard 700 Series, DEC MIPS, OSF/1 AXP, IBM RISC System 6000,
Linux, and NEXTSTEP. Mathematica 2.2 is required. The pack is available
directly through Wolfram Research and resellers worldwide.
 
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