Finally, GNU Octave 4.2 was released (also see the new shiny website). It comes with
odeget and some
odeXX compatible time steppers that have been developed with contributions within recent GSOC and SOCIS projects.
macOS users can get the release already today by using homebrew as usual
brew install octave
- A. Pels, R. Sabariego, S. Schöps – Solving Multirate Partial Differential Equations using hat Finite Element basis functions
- U. Römer, C. Schmidt, U. Van Rienen, S. Schöps – Low-Dimensional Stochastic Modeling of the Electrical Properties of Biological Tissues (Preprint)
- J. Dutiné, M. Clemens, S. Schöps – Multiple Right-Hand Side Techniques in Semi-Explicit Time Integration Methods for Transient Eddy Current Problems (Preprint)
- M. Eller, S. Reitzinger, S. Schöps, S. Zaglmayr – A Reduced Basis Approach for Broadband Maxwell Simulations
- I. Niyonzima, M. Clemens, S. Schöps – Investigation of the Time Integration Methods on the Parareal Method for Field Computation of Eddy Currents Problems
This paper proposes the application of the waveform relaxation method to the homogenization of multiscale magnetoquasistatic problems. In the monolithic heterogeneous multiscale method, the nonlinear macroscale problem is solved using the Newton–Raphson scheme. The resolution of many mesoscale problems per Gauss point allows to compute the homogenized constitutive law and its derivative by finite differences. In the proposed approach, the macroscale problem and the mesoscale problems are weakly coupled and solved separately using the finite element method on time intervals for several waveform relaxation iterations. The exchange of information between both problems is still carried out using the heterogeneous multiscale method. However, the partial derivatives can now be evaluated exactly by solving only one mesoscale problem per Gauss point. Continue reading →
URSI Commission B’s International Symposium on Electromagnetic Theory (EMTS 2016) has been held from 14–18 August 2016 in Espoo, Finland. We presented in the Session of numerical time domain methods on Monday the contribution “An Application of ParaExp to Electromagnetic Wave Problems” (Melina Merkel, Innocent Niyonzima and Sebastian Schöps).Continue reading
The graphical user interface of Octave 4.0 can only be compiled with Qt4. Homebrew is dropping 4.x support and moving towards 5.x. Several Octave dependencies have already been updated (e.g. Qscintilla2, see e.g. this issue. However, the upcoming Octave 4.2 (release is scheduled for September 2016) will have full Qt5 as discussed here.The standard installation uses the command line interface. If you need Octave with graphical user interface then this should work
brew update brew upgrade #to get the latest qscintilla brew install octave --with-gui --HEADUpdate: The post has been edited on Aug 20 since the new formula is now available in homebrew’s science repository.