Summer of Code - Getting Started: Difference between revisions

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Summer of Code - Getting Started (edit)

Revision as of 23:33, 6 September 2018

4,924 bytes removed ,  6 September 2018
Removed "Command line suggestion feature" project because this was done in GSoC 2018 (https://sudeepam.blogspot.com/)
(Removed "Command line suggestion feature" project because this was done in GSoC 2018 (https://sudeepam.blogspot.com/))
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! <br />!! !! !! !! !! !!
! <br />!! !! !! !! !! !!
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| [[Summer_of_Code_Project_Ideas#Make_specfuns_special_again | Make specfuns special again]] || Marco Caliari || Colin Macdonald || Numerical || No || Medium || [https://gsocspecfun.blogspot.de/ GSoC 2017]
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| [[Summer_of_Code_Project_Ideas#ode15s_:_Matlab_Compatible_DAE_solver | ode15{i,s} : Matlab Compatible DAE solvers]] || Carlo de Falco || Francesco Faccio, Marco Caliari, Jacopo Corno, Sebastian Schöps || Numerical || No  || Medium || GSoC 2016
| [[Summer_of_Code_Project_Ideas#ode15s_:_Matlab_Compatible_DAE_solver | ode15{i,s} : Matlab Compatible DAE solvers]] || Carlo de Falco || Francesco Faccio, Marco Caliari, Jacopo Corno, Sebastian Schöps || Numerical || No  || Medium || GSoC 2016
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| [[Summer_of_Code_Project_Ideas#Using_Python_within_Octave | Pytave project]] || Mike Miller || Colin B. Macdonald, Abhinav Tripathi || Infrastructure || No  || Medium || some in GSoC 2016
| [[Summer_of_Code_Project_Ideas#Using_Python_within_Octave | Pytave project]] || Mike Miller || Colin B. Macdonald, Abhinav Tripathi || Infrastructure || No  || Medium || some in GSoC 2016
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| [[Summer_of_Code_Project_Ideas#Jupyter_Integration | Jupyter integration]] || Mike Miller || Colin B. Macdonald || Infrastructure ||  Yes || Medium || Never
| [[Summer_of_Code_Project_Ideas#Jupyter_Integration | Jupyter integration]] || Mike Miller || Colin B. Macdonald, Ankit Raj || Infrastructure ||  Yes || Medium || Never
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| [[Summer_of_Code_Project_Ideas#Chebfun_in_Octave | Chebfun in Octave]] || Colin B. Macdonald || [[User:KaKiLa|KaKiLa]], needs core-Octave mentor/comentor || Infrastructure, Numerical || Yes  || Hard || Never
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| [[Summer_of_Code_Project_Ideas#Octave_code_sharing | Octave code sharing]] || [[User:Siko1056|Kai T. Ohlhus]] || ? || Infrastructure || Yes  || Medium || Never
| [[Summer_of_Code_Project_Ideas#Chebfun_in_Octave | Chebfun in Octave]] || Colin B. Macdonald || [[User:KaKiLa|KaKiLa]], Ankit Raj, needs core-Octave mentor/comentor || Infrastructure, Numerical || Yes  || Hard || Never
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| [[Summer_of_Code_Project_Ideas#GUI Variable Editor and Property Inspector | GUI Property Inspector]] || ? ||  || GUI || Yes  || Medium || Never
| [[Summer_of_Code_Project_Ideas#GUI Variable Editor and Property Inspector | GUI Property Inspector]] || ? ||  || GUI || Yes  || Medium || Never
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These projects involve implementing certain mathematical functions, primarily in core Octave.
These projects involve implementing certain mathematical functions, primarily in core Octave.
=== Make specfuns special again ===
Traditionally, problem solving environments like Octave provide simple interfaces to numerical linear algebra, special function evaluation, root finding, and other tools.  Special functions (such as Bessel functions, exponential integrals, LambertW, etc) are expected by users to "just work".  But many of Octave's special functions could be improved to improve their numerical accuracy.  Generally a user might expect these to be accurate to full 15 digits.  Software testing is important to Octave; this project would improve the tests of many special functions, in particular by comparing the output with slow-but-accurate symbolic computations.
State: some bugs include [https://savannah.gnu.org/bugs/?48307 #48307] (sinc), [https://savannah.gnu.org/bugs/?47738  #47738] (expint), [https://savannah.gnu.org/bugs/?47800  #47800] (gammainc), [https://savannah.gnu.org/bugs/?48036 #48036] (gammaincinv) [https://savannah.gnu.org/bugs/index.php?48316 #48316] (besselj) ''TODO: add others?''  The unmaintained specfun pkg had some poor implementations (e.g., divergence for large x, see [https://github.com/cbm755/octsympy/issues/416].).  See also the Symbolic functions in `@double`: these probably should have native double implementations.
* '''Required skills'''
: Octave m-file programming, some familiarity with Approximation Theory (a branch of mathematics).
* '''Difficulty'''
: Medium (mathematics needed, but on the other hand, perhaps little or no C++).
* '''Potential mentors'''
: Marco Caliari, Colin Macdonald, others?
How to get started: pick a special function, see if it has tests: contribute a patch that adds more tests, e.g., comparing its values to symbolic computations or other highly accurate solutions


=== ode15{i,s} : Matlab Compatible DAE solvers ===
=== ode15{i,s} : Matlab Compatible DAE solvers ===
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[http://hg.savannah.gnu.org/hgweb/octave/file/4890b1c4a6bd/scripts/ode/ode15i.m ode15i.m] and
[http://hg.savannah.gnu.org/hgweb/octave/file/4890b1c4a6bd/scripts/ode/ode15i.m ode15i.m] and
[http://hg.savannah.gnu.org/hgweb/octave/file/4890b1c4a6bd/scripts/ode/ode15s.m ode15s.m].
[http://hg.savannah.gnu.org/hgweb/octave/file/4890b1c4a6bd/scripts/ode/ode15s.m ode15s.m].
The list of outsanding tracker tickets concerning this implementation can be found  
The list of outstanding tracker tickets concerning this implementation can be found  
[https://savannah.gnu.org/search/?Search=Search&words=ode15&type_of_search=bugs&only_group_id=1925&exact=1&max_rows=25#options here]
[https://savannah.gnu.org/search/?Search=Search&words=ode15&type_of_search=bugs&only_group_id=1925&exact=1&max_rows=25#options here]


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to a possible project plan would be improving documentation and tests in odepkg and removing  
to a possible project plan would be improving documentation and tests in odepkg and removing  
overlaps with the documentation in core Octave.
overlaps with the documentation in core Octave.
   
   
* '''Required skills'''
* '''Required skills'''
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* '''Mentor'''
* '''Mentor'''
: [[User:KaKiLa|KaKiLa]], Carnë Draug, Carlo de Falco, Sebastian Schöps
: [[User:KaKiLa|KaKiLa]], Carnë Draug, Carlo de Falco, Sebastian Schöps
=== Command line suggestion feature ===
Currently Octave has no mechanism for suggesting corrections to typographic errors on the command line. An autocomplete/suggestion function is provided (using the double-TAB shortcut), but recent discussions have indicated a desire for a more proactive measure to catch user error.  Potential applicants are referred to bug {{bug|46881}} regarding the usage of grey vs. gray.
Suggested improvements are:
* provide one or more suggested corrections to the user when a command line entry produces an error.
* recognition and suggested correction for apparent syntax errors
* function suggestion(s) when a 'close' match is found (close remains to be defined)
* multiple suggestions if more than one option seems likely, along with a user-friendly method of selecting the appropriate choice.
* user selectable option to disable and/or customize the suggestion behavior
* correct operation, or graceful degradation, whether Octave is run in GUI or command-line mode.
As mentioned in the bug {{bug|46881}} discussion, this project has little-to-no relation to m-code compatibility. As such, emulation of the behavior of other software is not required, nor even necessarily desired. Octave is free to implement as simple or complex a solution to this feature request as is necessary to provide the best experience to the user. There may be tools, features, or code from other license-compatible projects that can be of use here, and the applicant would be encouraged to identify and leverage such resources as appropriate.
* '''Minimum requirements'''
: TBD
* '''Difficulty'''
: Easy to Medium.
* '''Mentor'''
: Undetermined
=== Octave code sharing ===
Recently, on the [[OctConf_2017]] a [https://rawgit.com/siko1056/Octconf2017/master/octconf2017-publish-ohlhus-slides.pdf talk] about uploading [https://www.gnu.org/software/octave/doc/interpreter/XREFpublish.html published Octave code] to a MediaWiki (like this one) as an easy way to share code was given. With the talk, a [https://github.com/siko1056/OctConf2017 repository] containing example code for the MediaWiki upload is given. This might continue the idea of an unfinished [[Agora]] code sharing website, but one is not restricted to fully stay with the proposed approach. Another, but more ambitious idea is for example [http://central.scipy.org/ Scipy Central] - a website for Scipy code sharing. Their [https://github.com/scipy/SciPyCentral Code] is released under a BSD license.
* '''Minimum requirements'''
: Ability to read and write Octave code, some familiarity with C++ ([https://curl.haxx.se libcurl]), web development (GET/POST/FORM data, cookies), and [https://www.mediawiki.org/wiki/MediaWiki MediaWiki].
* '''Difficulty'''
: Medium.
* '''Mentor'''
: [[User:Siko1056|Kai T. Ohlhus]]


=== SPQR Interface ===
=== SPQR Interface ===
Nir
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