ACOS or Acos may refer to:
*
Arccosine
In mathematics, the inverse trigonometric functions (occasionally also called arcus functions, antitrigonometric functions or cyclometric functions) are the inverse functions of the trigonometric functions (with suitably restricted domains). Sp ...
, an inverse trigonometric function
* The
Advanced Comprehensive Operating System mainframe computer operating system
*
Acos District in Peru
*
Acos Vinchos District in Peru
*
A Crown of Swords novel
See also
*
Aco (disambiguation)
ACO, AcO, or Aco may refer to:
Organizations
* Accountable care organization, healthcare organization characterized by a specific payment and care delivery model
* Aco Records, a British 1920s record label
* ACO, C.A., a Venezuelan holding comp ...
*
Cos (disambiguation)
Cos, COS, CoS, coS or Cos. may refer to:
Mathematics, science and technology
* Carbonyl sulfide
* Class of service (CoS or COS), a network header field defined by the IEEE 802.1p task group
* Class of service (COS), a parameter in telephone syste ...
*
{{disambiguation