On 5/04/2012 5:49 AM, nijso beishuizen wrote:
> Dear all,
>
> Again, a question about something that was once written in/with
> macsyma and now (probably) lost...
>
> Does somebody know of a surviving macsyma/maxima implementation of the
> kovacic algorithm (solving second order ode's using differential
> Galois theory)? In some papers from the beginning of the 80's the
> authors state that they 'have implemented the algorithm in macsyma',
> most notably Prelle&Singer (1983). At least 4 different groups have
> written a version in macsyma and one version of this algorithm was
> probably part of Macsyma at one point (mentioned in the Handbook of
> differential equations in 1989).
I asked about this up a few years ago without success. At the time I
contacted David Saunders about his 1981 code, but he no longer had a copy./
/