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NetNUMPAC: A System on the WWW for Computing With a Mathematical Software Package NUMPAC
by
Takemitsu Hasegawa
Fukui University
Coauthors: Toshiki Sando (Fukui University), Yoshio Satou (Fukui University), Yasuyo Hatano (Chukyo University), Ichizo Ninomiya (Nagoya University)
NUMPAC is the Nagoya University Mathematical Package constructed by the numerical analysis group at Nagoya University, Japan. The NUMPAC consists of a variety of numerical softwares for nonlinear equations, special functions, systems of linear equations, eigenvalue problem, Fourier analysis, interpolation and approximation, differential equations, and numerical integration. The softwares in the NUMPAC are written in Fortran with both single and double precision versions (some with quadruple precision) and amount to around thousand in number. Since the NUMPAC covers lots problems in numerical computations, the NUMPAC has been used by many users, which is demonstrated by the fact that the NUMPAC has been installed in mainframe computers at many universities in Japan. On the other hand, the advances of internet technology and of personal computers facilitate the use of the WWW and cause less use of the mainframe computers.
In this talk we describe NetNUMPAC; an online system of the NUMPAC, which enables any users who can access to the WWW to retrieve about thousand of source programs in the NUMPAC as well as each manual illustrating the use of the corresponding program. The manuals are now available in English as well as in Japanese. Each manual, which is written in HTML, is arranged in a hierarchical structure, that is, in a tree structure similar to the classification scheme of scientific softwares GAMS.
Simple test programs are appended to most manuals to illustrate the use of the corresponding programs, particularly the arguments of subroutines. In this connection, the NetNUMPAC provides users with a facility of running the test programs to demonstrate how the subroutines depicted on the manuals work. Furthermore to make easy for novice users to compute with a software selected in the NUMPAC, a simple user-interface to use the NUMPAC programs is available without taking trouble to write a main program calling the softwares in the NUMPAC.
The talk concludes with some outlook of the NetNUMPAC project.
Date received: June 30, 1999
Copyright © 1999 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # cadk-11.