SQL Server/T-SQL Tutorial/Math Functions/ACOS
Версия от 16:46, 26 мая 2010; (обсуждение)
ACOS Returns as a float data type, the angle in radians that corresponds to the entered cosine, which must have values between -1 and 1.
<source lang="sql">
This function is the inverse of COS. 6> 7> SELECT ACOS(0.33) 8> GO
1.2344927516409163
(1 rows affected)</source>