# acos

Abbreviation: arccosine or inverse cosine.

Citation Info

- [MLA] “acos.”
*Platonic Realms Interactive Mathematics Encyclopedia.*Platonic Realms, 2 Nov 2015. Web. 23 Apr 2019. <http://platonicrealms.com/> - [APA] acos (2 Nov 2015). Retrieved 23 Apr 2019 from the
*Platonic Realms Interactive Mathematics Encyclopedia:*http://platonicrealms.com/encyclopedia/acos/