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1994-06-07
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New Software Release Announcement (May 23, 1994)
Taku Takeshima, Research Fellow
Institute for Social Information Science,
FUJITSU LABORATORIES LIMITED
140 Miyamoto, Numazu-shi, Shizuoka
410-03 JAPAN
TEL. +81-559-24-7210, FAX. +81-559-24-6180
E-mail. tak@iias.flab.fujitsu.co.jp
(1) Announcement:
We are very happy to announce that
Risa/Asir,
an experimental computer algebra system
developed at FUJITSU LABORATORIES LIMITED (FLL, hereunder),
is now publicly available in binary form.
Although FLL shall reserve its copyright, Risa/Asir is now publicly
distributed and permitted to copy, use and re-distribute as it is
without fee for non-profit purposes.
See `Distribution Notice' in the file `Distribution' provided as one of
the distribution materials of Risa/Asir.
(2) Where can it be obtained from?
Risa/Asir and its supporting documentation can be obtained by
anonymous ftp from
Host name: ftp.mm.sophia.ac.jp,
(Current IP address of the host: 133.12.50.13)
Directory: /asir.
(3) Notice:
Risa/Asir's distribution binary includes binaries of other parties'
contribution whose use is permitted for non-profit purposes. Permission
to distribute Risa/Asir including their binaries is specially granted by
the respective parties.
They are
(1) Hans-J. Boehm's Garbage Collector, and
(2) Henri Cohen's PARI.
Permission granted to use, copy and re-distribute Risa/Asir is also
subject to the conditions set for the respective softwares.
See `Distribution Notice' in the file `Distribution' provided as one of
the distribution materials of Risa/Asir.
(3) What is Risa/Asir?
Risa/Asir is a computer algebra system, which provides a programming
system Asir with several subroutine libraries that can also be used as
parts of other programs. (In binary form, the usage as libraries for
other program is at this moment difficult. Technical information for
interfacing to libraries will be supplied some day in the future.)
(The name `Risa' came after `Research instrument for symbolic algebra.')
It runs on major UNIX workstations, Macintoshes and MS-DOS machines
under DOS-Extenders. Though its scope for symbolic and algebraic
computation is very limited at this moment, its performance of doing
several major algebraic operations in the polynomial ring is considerably
high to cope with practical problems.
Its programming system Asir has a C-like language, also called `Asir,'
its interpreter and a dbx-like source-line debugger. The source line
debugger is very helpful and may be indispensable for those who want to
implement algorithms for algebraic computation.
(4) Contact address:
Risa/Asir is created as an experimental system and still under ongoing
updates and technical evolution. Therefore, any comment concerning
Risa/Asir based on its use is welcomed and such comments should be
reported to the e-mail address:
noro@iias.flab.fujitsu.co.jp.
(5) Acknowledgement:
This distribution is realized not only by our own efforts but also
by a lot of invaluable cooperations from many researchers.
First of all, we should like to express our special gratitude to
Dr. Hans-J Boehm at Xerox Corporation who kindly granted us to include
his garbage collector in Risa/Asir's distribution binary.
Without the use of his nice garbage collector, distribution of Risa/Asir
could not be realized so easily. It is best fit to the memory manager for
our purpose to realize an environment for advanced scientific computation
by cooperation of many independently developed softwares each of which
is specialized in solving a specific problem.
We should also like to express our heartily appreciation to Professor
Henri Cohen at Universite Bordeaux I, for his kind grant to us to
distribute Risa/Asir with the binary of his excellent PARI system
included.
Risa/Asir entrusts its `big-float' operations all to PARI system, where
a number of mathematical functions are evaluated at a remarkable speed.
Users, who need numerical computation at an arbitrary precision as well
as exact algebraic computation, will be much benefitted through the use
of PARI functions from Risa/Asir.
We also give our thanks to Dr. T. Saito, the administrator of network
environment of the Department of Mathematics, Sophia University,
for his kind offer and help to let us place our distribution binary
at an ftp file directory under his administration.
Last but not least, many thanks should go to those early intensive users
of Risa/Asir, who struggled with its earlier versions and have given many
valuable comments, new ideas and suggestions, and encouragements for
improvements.
Among all, we would like to note several names:
T. Saito (Sophia Univ.), M. Noda (Ehime U.),
Y. Kondoh (Takuma Col. of Tech.), Y. Murao (U. of Tokyo),
and I. Makino (Kogakuin U.).