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v1.6.1
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golden
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udf_acos-2-d330511cf4f626cd844b18f57f99a85f
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acos
(
x
)
-
returns the arc cosine of x
if
-
1
<=
x
<=
1
or
NULL otherwise
Example
:
>
SELECT acos
(
1
)
FROM src LIMIT
1
;
0
>
SELECT acos
(
2
)
FROM src LIMIT
1
;
NULL
