Oracle COS() function

Description

The COS() function is used to get the cosine of a number where the number is given in radians.
The function takes any numeric or nonnumeric data type (can be implicitly converted to a numeric data type) as an argument.
If the argument is BINARY_FLOAT, then the function returns BINARY_DOUBLE. Otherwise, the function returns the same numeric data type as the argument

Syntax:

COS(N)

Parameters:

Pictorial Presentation of COS() function

Example-1

The statement below will return the cosine of 180 degrees.

SELECT COS(180 * 3.14159265359/180) "Cosine 180 degrees"
  FROM DUAL;

Here is the result.

Cosine 180 degrees
------------------
                -1

Example-2

The statement below will return the cosine of the number 1.

SELECT COS(1) "Cosine"
FROM DUAL;

Here is the result.

    COS(1)
----------
.540302306

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