ATAN

Contents


atan returns its parameter's arc-tangent.

 

Syntax

   atan(num_exp)

 

Parameters

Element

Description

Restrictions

num_exp

Numeric Expression

-1e80<=exp_num<=1e80

 

Examples

   Y = atan(0.866)

 

Description and Comments

This function returns the arc-tangent of the parameter expressed in the current angular mode.

atan is the inverse of the tan function.

The result is the Double type.

 

Associated Errors

Error

Description

ERMODE (10)

The parameter is not numeric.

 

Associated Keywords

SIN - COS - TAN - ASIN - ACOS - ATAN2 - ANGLE - ADXMDA


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