> What gave you the idea for the syntax  taninv2(afoox,afooy) ?
>==John

The manual.

The v.3.52 Windows help version:
taninv2(x, y)	       (no rate restriction)
Description:
taninv2(x, y) returns the arctan of y/x. If any of x or y is zero, taninv2 returns zero.

The v.3.52 PDF version:
taninv2 (x) (no rate restriction)
Without description.

The v.3.48 HTML online version (http://www.leeds.ac.uk/music/Man/Csound/title.html):
No taninv2 yet.

The v.3.53 HTML version (ftp://ftp.musique.umontreal.ca/pub/CsoundManual/CsManual3.53.HTML.zip):
Finally correct, though taninv2 is still missing in the index. (Well, I don't mind.)

I found it today. Just didn't think the manuals were so different, and didn't bother to check them all.
Anyway - my problem is solved :)

Jens.