bn:00005366n
Noun Concept
EN
arc cosine  arccosine  arccos  inverse cosine
EN
The inverse function of the cosine; the angle that has a cosine equal to a given number WordNet 3.0
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EN
The inverse function of the cosine; the angle that has a cosine equal to a given number WordNet 3.0 & Open English WordNet
Any of several single-valued or multivalued functions that are inverses of the cosine function. Wiktionary
Inverse of the cosine function. Wiktionary (translation)
WordNet 3.0 & Open English WordNet
Wiktionary