[seqfan] Re: Java implementations update

[Sean A. Irvine]

Yes, most of the programs have to resort to function calls for "add",
"multiply", etc..  Java is well-known for being verbose in this regard.

But then again I find most of the Mathematica and Haskell programs in the
OEIS incomprehensible.  Tastes vary I guess.

Sean.

On Wed, 19 Jun 2019 at 13:11, Fred Lunnon <fred.lunnon at gmail.com> wrote:

> << Georg and I are looking for additional contributors of Java code or of
> other algorithms which cover some number of sequences. >>
>   I am unable to parse this --- are you soliciting only Java programs, or
> in
> other languages as well; and if the latter, which others are acceptable?
>
>   Presumably Java programs (for unbounded sequences at least) must
> abandon arithmetic expressions in favour of explicit  BigInteger  function
> calls, considerably reducing their legiblility?
>
>   [ I have to confess to abandoning Java in disgust after the distributor
> casually disabled the only feature for which I would countenance
> overlooking its appallingly obsolete syntax and permanently broken
> concurrent process model, which was its precious ability to run an
> interactive applet at a remote site without hindrance while browsing.
>
>   Never forget how easily in the online world a stroke of a keyboard
> in some big tech office can obliterate many years work by a multitude
> of individuals, without recourse to compensation! ]
>
> WFL
>
>
>
> On 6/18/19, Sean A. Irvine <sairvin at gmail.com> wrote:
> > Thanks to recent contributions by Georg Fischer, the collection of Java
> > programs for OEIS sequences (jOEIS) now has implementations for over
> 58200
> > sequences, especially concentrated in A-numbers less than A024000.  We
> are
> > currently covering about 1/6 of all sequences.
> >
> > The main aim of the project is to validate sequence data in the OEIS.
> >
> > The entire project is available on github:
> >
> > https://github.com/archmageirvine/joeis
> >
> > To the extent possible, these implementations are regularly tested
> against
> > the data lines in the corresponding sequences.  Georg has done extensive
> > testing against b-files, leading to numerous corrections in the OEIS (and
> > to be fair, in the implementations as well).
> >
> > Georg and I are looking for additional contributors of Java code or of
> > other algorithms which cover some number of sequences.  The following
> link
> > is those A-numbers below A024000 for which we do not currently have an
> > implementation:
> >
> >
> https://github.com/archmageirvine/joeis/blob/master/src/irvine/oeis/notdone.dat
> >
> > Some of these are inherently hard, but in many cases it is lack of
> > information that prevents implementation.  Many currently have no useful
> > program (or formula) in any language and are thus good candidates for
> > general improvement in the OEIS.
> >
> > Sean.
> >
> > --
> > Seqfan Mailing list - http://list.seqfan.eu/
> >
>
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>