TAN

Syntax

tan::=
Description of tan.gif follows

Description of the illustration tan.gif

Purpose

TAN returns the tangent 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.

See Also:

Table 2-11, "Implicit Type Conversion Matrix" for more information on implicit conversion

Examples

The following example returns the tangent of 135 degrees:

SELECT TAN(135 * 3.14159265359/180)
   "Tangent of 135 degrees"  FROM DUAL;

Tangent of 135 degrees
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                   - 1