Algorithm 948: DAESA—A Matlab Tool for Structural Analysis of Differential-Algebraic Equations: Software

Algorithm 948: DAESA—A Matlab Tool for Structural Analysis of Differential-Algebraic Equations: Software

DAESA, Differential-Algebraic Equations Structural Analyzer, is a Matlab tool for structural analysis of differential-algebraic equations (DAEs). It allows convenient translation of a DAE system into Matlab and provides a small set of easy-to-use functions. DAESA can analyze systems that are fully n...

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Veröffentlicht in:ACM transactions on mathematical software 2015-01, Vol.41 (2), p.1-14
Hauptverfasser: Nedialkov, Nedialko S., Pryce, John D., Tan, Guangning
Format: Artikel
Sprache:eng
Schlagworte:
Blocking
Computer programs
Functions (mathematics)
Mathematical analysis
Matlab
Software
Structural analysis
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Zusammenfassung:DAESA, Differential-Algebraic Equations Structural Analyzer, is a Matlab tool for structural analysis of differential-algebraic equations (DAEs). It allows convenient translation of a DAE system into Matlab and provides a small set of easy-to-use functions. DAESA can analyze systems that are fully nonlinear, high-index, and of any order. It determines structural index, number of degrees of freedom, constraints, variables to be initialized, and suggests a solution scheme. The structure of a DAE can be readily visualized by this tool. It can also construct a block-triangular form of the DAE, which can be exploited to solve it efficiently in a block-wise manner.
ISSN:0098-3500
1557-7295
DOI:10.1145/2700586