ACOS
Computes the arccosine (inverse cosine) of a value in radians.
Syntax
ACOS(numeric_expression NUMERIC) → FLOAT
numeric_expression: The number in radians. This must be
DOUBLE
,INTEGER
, orFLOAT
.
Examples
SELECT ACOS(0)
-- 1.5707963267948966
SELECT ACOS(1.0)
-- 0.0
SELECT ACOS(-1)
-- 3.141592653589793
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