ATAN() - Arctangent

Returns the arctangant of a number.

Returns

Double value if successful. If an error occurs, this function returns a zero.

Arguments

Type	Field	Description
double	dNumber	Value

16 bit DLL declarations

PowerBuilder Function declaration

function double ATAN(double dNumber) library "IFL16.DLL"

Visual Basic Function declaration

Declare Function ATAN lib "IFL16" (ByVal dNumber As Double) As Double

32 bit DLL declarations

PowerBuilder Function declaration

function double ATAN(double dNumber) library "IFL32.DLL"

Visual Basic Function declaration

Declare Function ATAN lib "IFL32" (ByVal dNumber As Double) As Double

Example:

dNumber

=

-862.42

Result: -1.569637