COS

The COS function returns the cosine of Expression (an angle expressed in radians).

SQL syntax

COS(Expression)

Parameters

COS has the parameter:

Parameter Description

Expression

Operand or column can be any numeric data type or any non-numeric data type that can be implicitly converted to a numeric data type.

Description

  • If Expression is of type NUMBER, the data type returned is NUMBER. For all other numeric data types, the data type returned is BINARY_DOUBLE.

  • If the value of Expression is NULL, NULL is returned.

Example

Use the COS function to return the cosine of 180 degrees. 

Command> SELECT COS(180 * 3.14159265359/180) "Cosine of 180 degrees" FROM dual;
< -.99999999999999999999999997862483333497 >
1 row found.