Ptolemaic directions

[Jean]

I never use primary myself. And the secondary only sometimes.
But i was asking because they seem popular. Many years ago pd did not have any primary progression at all and i considered that a shortcoming. So i was glad when the van dam was implemented, even with permission from Wim himself for pd. So that was what i had in mind when i asked.
And seeing that code, it would not be too much work to implement a simple version for in horoscope progression.

And to be honest, if there were only 'things that work' in there pd would be a lot smaller. A better criterium would be if some technique is common or not. I seems you both agree on that.

ps, maybe i could even write it myself, with a little help. Maybe even those two variations?