Wolfram Research Announces Mathematica 2.2 

April 1, 1993 -- Champaign, Illinois -- Wolfram Research, Inc. today
introduced Mathematica 2.2, a significantly enhanced version of its
comprehensive software system for technical computing. This new version
includes over 2,000 enhancements and new features. These cover all the
major areas of Mathematica including numerical symbolic, and graphical
computation, programming, and Notebook interfaces. Some major new features
and enhancements are additional linear algebra and differential equation
capabilities; a new on-line reference guide; an enhanced Notebook front
end which includes a function browsing capability; and an extended and
vastly improved Windows version.

Mathematica 2.2 is available for all platforms supported by Mathematica:
UNIX, Macintosh, Microsoft Windows, and MS-DOS. For many of these
platforms, the new version includes machine-specific improvements.

"Mathematica 2.2 represents a significant release in which we've placed a
heavy emphasis on ease-of-use," said Prem Chawla, chief operating officer,
Wolfram Research. "But we've done much more than make the product easier
to use, we've also added significant, new features that customers have
been asking for--like enhanced capabilities in the area of numeric and
symbolic calculation."

New Capabilities of Mathematica 2.2 

Mathematica 2.2 improves upon many of the program's numeric functions. It
can now recognize linear systems that are sparse and solve them faster.
Equation solving capabilities have been improved and now include a more
sophisticated handling of symbolic matrices. Finally, new interval
arithmetic capabilities have been added allowing rigorous error estimates
for numerical computations to be performed.

Mathematica's symbolic capabilities include more sophisticated treatment of
singularities in definite integrals. In addition, solutions of symbolic
differential equations have been greatly enhanced. Mathematica can now
generate symbolic solutions to systems of nonlinear ordinary differential
equations, additional Ricatti equations, and first-order partial
differential equations.

New packages have been added to Mathematica 2.2 in such areas as spline
fitting, variational methods, elliptic integrals, and music. A new
graphics package lets Mathematica 2.2 plot implicit functions of three
variables and construct iso surfaces from three-dimensional data sets.
Another new graphics package defines pointers and arrows which can be used
in plotting vector fields. Existing packages in graphics, statistics,
numerical limits, and Fourier and Laplace transforms have also been
significantly enhanced.

MathLink, a communications standard that provides high-level data exchange
between Mathematica and external programs, has been updated so that it
also provides communication between the Mathematica kernel and the
Notebook front end. Now users can run the front end on one Macintosh and
run the kernel on another Macintosh, which frees memory on both systems.
In addition, a single front end can now communicate with several kernels.

Machine-Specific Enhancements 

Mathematica 2.2 for Windows represents significant improvement, enhanced
efficiency and increased stability. "This is the version we've been
waiting for," said Sidney Steely, a beta tester at Calspan Corporation.
"I'm extremely pleased with Mathematica 2.2 for Windows. I find it to be
very clean and virtually problem-free. Plus there is useful, new
functionality."

Mathematica 2.2 contains a number of new front end features that enhance
interactive document capabilities. Windows users can now search for and
replace Notebook text, edit Notebook styles, and divide and merge cells.
In addition, this version features more sophisticated and versatile memory
management.

"It has been a great challenge to make Mathematica, a 32-bit application,
run smoothly in the Windows environment. Now we've done it," explains Prem
Chawla, chief operating officer, Wolfram Research. "And this version
outshines its predecessors by leaps and bounds. It's clean and it's
stable. If our Windows users love it as much as our beta testers do, we're
in very good shape."

In Macintosh and NeXTSTEP versions of Mathematica 2.2, a new Function
Browser lets users find commands quickly and easily by displaying lists of
Mathematica functions at the press of a button. The functions are then
explained and the user is given the option of pasting a function template
into Notebook cells. This easy-to-use feature will be useful not only to
new users, but also to those who are more advanced.

The Macintosh front end of Mathematica 2.2 adds new graphics preferences
options, a simplified method for referring to other files from within the
program, improved allocation and monitoring of memory use, plus a number
of other changes for messaging, prompts, and kernel connections.

MathBook, available on UNIX platforms, was developed by Wolfram Research to
give users electronic access to documentation such as the Mathematica
Reference Guide or the Error Message Manual. MathBook provides a hypertext
interface and is available for systems that run Motif and OPEN LOOK.

The X PostScript interpreters in Mathematica 2.2 can now use Display
PostScript which provides a single imaging model for both on-screen and
printed output, when the necessary extensions are present on the X server.
In addition, the X-based PostScript interpreters for Motif and OPEN LOOK
can now display rotated text.

Price and Availability 

Mathematica 2.2 is now shipping for the Macintosh, Microsoft Windows, and
Sun Microsystems. Additional Unix systems including Silicon-Graphics,
Inc., Hewlett-Packard, MIPS, NeXT Computer, and Digital Equipment
Corporation will be shipped within 90 days. Users subscribing to
Mathematica Plus will automatically be shipped copies of Mathematica 2.2.
All other registered users will be sent upgrade information and order
forms. Mathematica 2.2 is compatible with previous versions; most
Mathematica programs and Notebooks written using Mathematica 2.0 or 2.1
will run unchanged in Mathematica 2.2. Upgrade pricing starts at $50.
Prices for Mathematica 2.2 start at $595.

About Mathematica and Wolfram Research, Inc. 

Mathematica, the leading software for numeric, symbolic, and graphical
computation, is used internationally by technical professionals in almost
every area of scientific and technical computing. Its underlying,
high-level programming language is becoming the language of choice for
programming among technical professionals and students. Mathematica is
available on more than 20 systems, including Macintosh, Unix, MS-DOS and
Microsoft Windows.

Wolfram Research distributes Mathematica worldwide directly as well as
through a variety of channels, including resellers, distributors, retail
outlets and hardware vendors. Wolfram Research Europe Ltd., based in the
United Kingdom, handles distribution in Europe. For further information on
Mathematica, contact Wolfram Research at 1-800-441-MATH or 217-398 0700.

Wolfram Research, 100 Trade Center Dr, Champaign, IL 61820-7237
217-398-0700    fax: 217-398-0747

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