AP - Astrology programming

1
31 Jul 2003

Happygolucky:

As part of a commercial venture, I am planning to have an online (free of course!)taster for personal and synastry horoscopes. Whilst there are some good free programs available for personal use eg starbud, astromatch and others, none of these can be used commercially.

So my questions are -
a) are there any programmes available that I can use for free (or on a limited fee basis)on this commercial type basis? (I would, however, like to amend the text)
As I have been unable to find such a program I was considering writing one. So
b)Which mathematical equations can I use without falling foul of copyright laws to design such a program? (accuracy of about 0.5 deg only required).

I would be happy to have the programme as open source just as long as any direct competitors could not use it without permission.

Any advice would be appreciated.

happygolucky

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Ekati:

I think that Astrolog is free and in addition its code is given for free. The Astrodienst website has utilized the Astrolog code and the chart calculations are based on Astrolog code