Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents txtBase As System.Windows.Forms.TextBox
    Friend WithEvents TxtTarget As System.Windows.Forms.TextBox
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents TxtExponent As System.Windows.Forms.TextBox
    Friend WithEvents Label4 As System.Windows.Forms.Label
    Friend WithEvents BtnCalc As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Label1 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.txtBase = New System.Windows.Forms.TextBox
        Me.TxtTarget = New System.Windows.Forms.TextBox
        Me.Label3 = New System.Windows.Forms.Label
        Me.TxtExponent = New System.Windows.Forms.TextBox
        Me.Label4 = New System.Windows.Forms.Label
        Me.BtnCalc = New System.Windows.Forms.Button
        Me.SuspendLayout()
        '
        'Label1
        '
        Me.Label1.AutoSize = True
        Me.Label1.Font = New System.Drawing.Font("Microsoft Sans Serif", 24.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Label1.Location = New System.Drawing.Point(152, 32)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(156, 49)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "Powers"
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(32, 120)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(64, 32)
        Me.Label2.TabIndex = 1
        Me.Label2.Text = "Base"
        '
        'txtBase
        '
        Me.txtBase.Location = New System.Drawing.Point(120, 120)
        Me.txtBase.Name = "txtBase"
        Me.txtBase.Size = New System.Drawing.Size(72, 22)
        Me.txtBase.TabIndex = 2
        Me.txtBase.Text = "2"
        '
        'TxtTarget
        '
        Me.TxtTarget.Location = New System.Drawing.Point(120, 160)
        Me.TxtTarget.Name = "TxtTarget"
        Me.TxtTarget.Size = New System.Drawing.Size(72, 22)
        Me.TxtTarget.TabIndex = 4
        Me.TxtTarget.Text = ""
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(32, 160)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(64, 32)
        Me.Label3.TabIndex = 3
        Me.Label3.Text = "Target"
        '
        'TxtExponent
        '
        Me.TxtExponent.Location = New System.Drawing.Point(120, 248)
        Me.TxtExponent.Name = "TxtExponent"
        Me.TxtExponent.ReadOnly = True
        Me.TxtExponent.Size = New System.Drawing.Size(72, 22)
        Me.TxtExponent.TabIndex = 6
        Me.TxtExponent.Text = ""
        '
        'Label4
        '
        Me.Label4.Location = New System.Drawing.Point(32, 248)
        Me.Label4.Name = "Label4"
        Me.Label4.Size = New System.Drawing.Size(64, 32)
        Me.Label4.TabIndex = 5
        Me.Label4.Text = "Exponent"
        '
        'BtnCalc
        '
        Me.BtnCalc.Location = New System.Drawing.Point(104, 200)
        Me.BtnCalc.Name = "BtnCalc"
        Me.BtnCalc.Size = New System.Drawing.Size(88, 32)
        Me.BtnCalc.TabIndex = 7
        Me.BtnCalc.Text = "Calculate"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 15)
        Me.ClientSize = New System.Drawing.Size(480, 448)
        Me.Controls.Add(Me.BtnCalc)
        Me.Controls.Add(Me.TxtExponent)
        Me.Controls.Add(Me.Label4)
        Me.Controls.Add(Me.TxtTarget)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.txtBase)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub BtnCalc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnCalc.Click
        If IsNumeric(txtBase.Text) And IsNumeric(TxtTarget.Text) Then
            Dim base As Double
            base = Convert.ToDouble(txtBase.Text)
            Dim target As Double
            target = Convert.ToDouble(TxtTarget.Text)
            'If base > 1 And target >= 1 Then
            Dim exponent As Integer = 0
            Dim calc As Double = base ^ exponent
            Do While calc < target
                ' haven't reached target yet - up exponent
                exponent = exponent + 1
                calc = base ^ exponent
            Loop
            ' if we get out here we have reached target
            TxtExponent.Text = exponent.ToString("")
            'Else
            'MsgBox("this won't work well with base or target below 1")
            'End If
        Else
        MsgBox("Please ensure that values entered are numeric")
        End If
    End Sub
End Class