Oracle® Database SQL Reference 10g Release 2 (10.2) Part Number B14200-01 |
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Syntax
Purpose
COS
returns the cosine of n
(an angle expressed in radians).
This function takes as an argument any numeric datatype or any nonnumeric datatype that can be implicitly converted to a numeric datatype. If the argument is BINARY_FLOAT
, then the function returns BINARY_DOUBLE
. Otherwise the function returns the same numeric datatype as the argument.
Examples
The following example returns the cosine of 180 degrees:
SELECT COS(180 * 3.14159265359/180) "Cosine of 180 degrees" FROM DUAL; Cosine of 180 degrees --------------------- -1