Atn returns the arctangent of a number in radians. The required parameter, number, is any numeric expression.
To convert degrees to radians, multiply degrees by π/180. To convert radians to degrees, multiply radians by 180/π.
Rem Atn Example 'Atn calculates the arctangent of a number Dim Pi Pi = Atn(1) * 4 Print "The value of pi is " & Pi
The value of pi is 3.141592653589793