valandil [1] filed a deletion request for octave-odepkg [2]: Almost all functionality of this package has been moved into Octave, and it has not been updated in years. See https://wiki.octave.org/Odepkg for details.
[1] https://aur.archlinux.org/account/valandil/ [2] https://aur.archlinux.org/pkgbase/octave-odepkg/
