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Zbl 1070.65574
Dhooge, A.; Govaerts, W.; Kuznetsov, Yu.A.
MATCONT: A MATLAB package for numerical bifurcation analysis of ODEs. (English)
[J] ACM Trans. Math. Softw. 29, No. 2, 141-164 (2003). ISSN 0098-3500

Summary: MATCONT is a graphical MATLAB software package for the interactive numerical study of dynamical systems. It allows one to compute curves of equilibria, limit points, Hopf points, limit cycles, period doubling bifurcation points of limit cycles, and fold bifurcation points of limit cycles. All curves are computed by the same function that implements a prediction-correction continuation algorithm based on the Moore-Penrose matrix pseudo-inverse. The continuation of bifurcation points of equilibria and limit cycles is based on bordering methods and minimally extended systems. Hence no additional unknowns such as singular vectors and eigenvectors are used and no artificial sparsity in the systems is created. The sparsity of the discretized systems for the computation of limit cycles and their bifurcation points is exploited by using the standard Matlab sparse matrix methods. The MATLAB environment makes the standard MATLAB Ordinary Differential Equations (ODE) Suite interactively available and provides computational and visualization tools; it also eliminates the compilation stage and so makes installation straightforward. Compared to other packages such as AUTO and CONTENT, adding a new type of curves is easy in the MATLAB environment. We illustrate this by a detailed description of the limit point curve type.

MSC 2000:: *65P30 Bifurcation problems
65Y15 Packaged methods
37-04 Machine computation, programs (Dynamical systems and ergodic theory)
37M20 Computational methods for bifurcation problems
37G15 Bifurcations of limit cycles and periodic orbits

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