HP-UX Reference (11i v1 05/09) - 3 Library Functions A-M (vol 6)

a
atan2(3M) atan2(3M)
STANDARDS CONFORMANCE
atan2(): SVID3, XPG4.2, ANSI C
HP-UX 11i Version 1: September 2005 2 Hewlett-Packard Company Section 327