View source for Arctan

==English==

===Alternative forms===
* {{l|en|arctg}}

===Etymology===
From {{prefix|en|arc|tan}}.

===Noun===
{{en-noun}}

# {{abbreviation of|en|arctangent}} {{C|en|Trigonometric functions}}
#: <math> \tan \left({\arctan 2 \over 2}\right) = {1\over \phi} </math>

===See also===
* {{l|en|arcsin}}
* {{l|en|arccos}}

===Anagrams===
* {{anagrams|en|a=aacnrt|cantar}}