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ARCTAN

The ARCTAN function calculates the angle value (in radians) of a specified tangent.

To retrieve a full-range (0 - 2 pi) numeric value indicating the arc tangent of a given ratio, use ARCTAN2.

Return Value

DECIMAL

Syntax

ARCTAN(expression)

Arguments

expression

An expression that contains the decimal value of a tangent.

Examples

Example 7-18 Calculating the Arc of a Tangent

This example calculates the arc of a tangent that has a value of 1.56. The statement

SHOW ARCTAN(1.56)

produces the following result.

1.00