Question

How to use atan() function to compute the principal value of the arc tangent of N in VB.NET

Answer 1

Module Module1

    Sub Main()

        Dim zero As Single = 0
        Dim Infinity As Single = 1 / zero

        Console.WriteLine("Math.Atan(1.0) = {0}", Math.Atan(1.0))
        Console.WriteLine("Math.Atan(-1.0) = {0}", Math.Atan(-1.0))
        Console.WriteLine("Math.Atan(0.0) = {0}", Math.Atan(0.0))
        Console.WriteLine("Math.Atan(-0.0) = {0}", Math.Atan(-0.0))
        Console.WriteLine("Math.Atan(Infinity) = {0}", Math.Atan(Infinity))

    End Sub

End Module

' run:
' 
' Math.Atan(1.0) = 0.785398163397448
' Math.Atan(-1.0) = -0.785398163397448
' Math.Atan(0.0) = 0
' Math.Atan(-0.0) = 0
' Math.Atan(Infinity) = 1.5707963267949

 

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