Some Math Methods

Name	Description

Abs	Returns the absolute value of a specified number.
Cos	Returns the cosine of the specified angle. Angle must be in radians
Max	Returns the larger of two specified numbers.
Min	Returns the smaller of two numbers.
Round	Rounds a value to the nearest integer.
Sin	Returns the sine of the specified angle. Angle must be in radians
Sqrt	Returns the square root of a specified number.
Tan	Returns the tangent of the specified angle. Angle must be in radians
Truncate	Calculates the integral part of a number.

Math.sqrt

Imports System.Windows.Forms
Module Module1

    Sub Main()
        Dim root As Double = Math.Sqrt(2) ' calculate the square root of 2
        ' display the results in a message dialog
        MessageBox.Show("The square root of 2 is " & root, "The Square Root of 2")
    End Sub

End Module

Math.max

Imports System.Windows.Forms
Module Module1

    Sub Main()
        Dim number1 As Integer = 37
        Dim number2 As Integer = 45
        Dim largest As Integer
        largest = Math.Max(number1, number2)
        MessageBox.Show("The largest of " & num1 & " and " & unm22 & " is " & largest, "Math.max")
    End Sub

End Module

Math.min

Imports System.Windows.Forms
Module Module1

    Sub Main()
      Dim num1 As Integer = 37
      Dim num2 As Integer = 45
      Dim smallest As Integer
      smallest = Math.Min(num1, num2)
      MessageBox.Show("The smallest of " & num1 & " and " & num2 & " is " & smallest, "Math.min")
End Sub

End Module

Math.Round

Imports System.Windows.Forms
Module Module1

    Sub Main()
      Dim num1 As Double = 45.6789
      Dim Rnd As Integer = Math.Round(num1)
      MessageBox.Show("The effect of using Math.Round on 45.6789 is: " & Rnd, "Math.Round")
End Sub

End Module

Math.Truncate

Imports System.Windows.Forms
Module Module1

    Sub Main()
      Dim num1 As Double = 45.6789
      Dim A As Integer = Math.Truncate(num1)
      MessageBox.Show("The effect of using Math.Truncate on 45.6789 is: " & A, "Math.Truncate")
    End Sub

End Module

Math.Abs

Imports System.Windows.Forms
Module Module1

    Sub Main()
        Dim num1 As Double = -45.6789
        Dim A As Double = Math.Abs(num1)
        MessageBox.Show("The effect of using Math.Abs on -45.6789 is: " & A, "Math.Abs")
    End Sub

End Module

Math.Sin

Imports System.Windows.Forms
Module Module1

    Sub Main()
        Dim x As Double = 3.1416 / 4
        Dim y As Double = Math.Sin(x)

        MessageBox.Show("The Sin of pi/4 is : " & y, "Math.Sin")
    End Sub

End Module

Math.Cos

Imports System.Windows.Forms
Module Module1

    Sub Main()
        Dim x As Double = 3.1416 / 4
        Dim y As Double = Math.Cos(x)

        MessageBox.Show("The Cos of pi/4 is : " & y, "Math.Cos")
    End Sub

End Module

Math.Tan

Imports System.Windows.Forms
Module Module1

    Sub Main()
        Dim x As Double = 3.1416 / 4
        Dim y As Double = Math.Tan(x)

        MessageBox.Show("The Tan of pi/4 is : " & y, "Math.Tan")
    End Sub

End Module

Note: The Tan should be 1 - the rest result from inaccuracies in numerical calculations - discuss in detail in my numerical methods course second semester