| NETFORM and code optimizer manual |
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ACM SIGSAM Bulletin
archive
Volume 15 , Issue 4 (November 1981)
table of contents
Pages: 23 - 32
Year of Publication: 1981
ISSN:0163-5824
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Downloads (6 Weeks): 3, Downloads (12 Months): 11, Citation Count: 2
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ABSTRACT
NETFORM is a very powerful and flexible tool for solving (sparse) systems of linear equations in algebraic form. The system includes convenient facilities to generate (and solve) linear equations for electrical networks.The accompanying Code Optimizer is a general purpose tool to automatically optimize sets of algebraic expressions, with emphasis on those generated by the NETFORM system.Thus the combination of both systems can be used to solve numerous problems of a symbolic and/or numeric nature, taking full advantage of the REDUCE 2 embedding in which it is supported.For instance NETFORM can automatically provide a user with descriptive (tableau) equations of an arbitrary linear electrical network and, as it solves such linear equations too, calculate any transferfunction of that linear electrical network. The NETFORM environment encourages users to think of electrical networks in terms of network elements, one port elements as well as subnetworks, which can be conveniently described and manipulated.Given a complete network description, NETFORM allows different approaches in analyzing it, i.e. a full symbolic analysis, a hybrid analysis, a state analysis or a mixed hybrid and state analysis.
REFERENCES
Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.
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Smit J., A recursive tearing technique for systems in which small as well as large elementvalues are significant. THT Report 1231-AM-0378. (Dec. 1978).
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Smit J., An efficient factoring symbolic determinant expansion algorithm. THT report 1231-AM-0478. (Dec. 1978).
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Smit J., Sparse Kirchhoff equations, an effective support tool for the numeric and symbolic solution of large sparse systems of network equations. Proceeding of the 1981 European Conference on Circuit theory and Design, (R. Boite and P. de Wilde eds.), North Holland Publicing comp. Amsterdam-New York-Oxford, pp 352--357.
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J. Smit, A cancellation free algorithm, with factoring capabilities, for the efficient solution of large sparse sets of equations, Proceedings of the fourth ACM symposium on Symbolic and algebraic computation, p.146-154, August 05-07, 1981, Snowbird, Utah, United States
[doi> 10.1145/800206.806386]
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Smit J. and van Hulzen J. A., Symbolic Numeric Methods in Microwave technology, Memorandum 374. Twente University of Technology, department of Applied Mathematics, (Dec. 1981).
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Hulshof B. J. A., van Hulzen J. A. and Smit J., Code optimization facilities applied in the NETFORM context, Memorandum 368. Twente University of Technology, department of Applied Mathematics, (Dec. 1981).
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Hearn A. C., REDUCE 2 users manual, Univ. of Utah: Report UCP-19 (1973).
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Frick I. B., Manual for Standard Lisp on Decsystem 10 and 20. Univ. of Utah: Report TR-2, (1978).
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CITED BY 2
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J. A. van Hulzen , B. J. Hulshof , B. L. Gates , M. C. van Heerwaarden, A code optimization package for REDUCE, Proceedings of the ACM-SIGSAM 1989 international symposium on Symbolic and algebraic computation, p.163-170, July 17-19, 1989, Portland, Oregon, United States
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