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jventura wrote: In section 4 of the post, I show one simple formula which is generic enough to solve the three mentioned problems in the same way. I demonstrate mathematically that the formula is adequate to solve each of the single "problems". The formula is just another way of expressing the semi-arc method, but it seems simpler to me...
In the proportional semi-arc method, the only formula needed is the one for mixed ascensions. Directions to the Ascendant (oblique formula) and the MC (simple subtraction) are simplified special cases where the formula can be reduced from the method of mixed ascensions.
Curtis Manwaring
Zoidiasoft Technologies, LLC

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zoidsoft wrote:
jventura wrote: In section 4 of the post, I show one simple formula which is generic enough to solve the three mentioned problems in the same way. I demonstrate mathematically that the formula is adequate to solve each of the single "problems". The formula is just another way of expressing the semi-arc method, but it seems simpler to me...
In the proportional semi-arc method, the only formula needed is the one for mixed ascensions. Directions to the Ascendant (oblique formula) and the MC (simple subtraction) are simplified special cases where the formula can be reduced from the method of mixed ascensions.
Hi Curtis,

yes, that's it! That is what I tried to demonstrate in that "section 4" of the post..
Probably it was already mentioned in Gansten's course! I didn't took the course, neither searched for other sources.. But this is way simpler for me now, so the posts (and the general idea) will stay available, may anyone need that info in the future.. :)


Jo?o Ventura