Projects: Difference between revisions

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75 bytes added ,  9 April 2022
→‎Numerical: removed a project that is already implemented in Octave
(→‎Packaging: Merge GSoC Octave Package management.)
(→‎Numerical: removed a project that is already implemented in Octave)
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*Improve design of ODE, DAE, classes.
*Improve design of ODE, DAE, classes.
*Make QR more memory efficient for large matrices when not all the columns of Q are required (apparently this is not handled by the lapack code yet).


*Evaluate harmonics and cross-correlations of unevenly sampled and nonstationary time series, as in http://www.jstatsoft.org/v11/i02 (which has C code with interface to R). (This is now partly implemented in the [http://octave.sourceforge.net/lssa/index.html lssa] package.)
*Evaluate harmonics and cross-correlations of unevenly sampled and nonstationary time series, as in http://www.jstatsoft.org/v11/i02 (which has C code with interface to R). (This is now partly implemented in the [http://octave.sourceforge.net/lssa/index.html lssa] package.)
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== Improve logm, sqrtm, funm ==
== Improve logm, sqrtm, funm ==


The goal here is to implement some missing Matlab functions related to matrix functions like the [https://en.wikipedia.org/wiki/Matrix_exponential matrix exponential]. There is [https://octave.1599824.n4.nabble.com/matrix-functions-td3137935.html a general discussion] of the problem. A good starting point for available algorithms and open-source implementations is Higham and Deadman's  [http://eprints.maths.manchester.ac.uk/2102/1/catalog.pdf "A Catalogue of Software for Matrix Functions"].
The goal here is to implement some missing Matlab functions related to matrix functions like the [https://en.wikipedia.org/wiki/Matrix_exponential matrix exponential]. There is [https://octave.1599824.n4.nabble.com/matrix-functions-td3137935.html a general discussion] of the problem and [https://octave.1599824.n4.nabble.com/Re-GSOC-16-Improvements-to-sqrtm-logm-and-funm-td4675180.html a thread on a GSOC project that never took off] (together with [https://github.com/RickOne16/matrix working funm.m code]). A good starting point for available algorithms and open-source implementations is Higham and Deadman's  [http://eprints.maths.manchester.ac.uk/2102/1/catalog.pdf "A Catalogue of Software for Matrix Functions"].


== Improve iterative methods for sparse linear systems ==
== Improve iterative methods for sparse linear systems ==
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