Windows VB.Net Tutorial

public class Test
   public Shared Sub Main
        Dim objExcel As Excel.Application
        objExcel = New Excel.Application
    
        Dim strMath As String
        strMath = "cos(3.673/4)/exp(-3.333)"
        If strMath <> "" Then
            Try
                Console.WriteLine(objExcel.Evaluate(strMath).ToString)
            Catch exc As Exception
                Console.WriteLine(exc.Message)
            End Try
        End If
        objExcel.Workbooks.Close()
        objExcel.Quit()
        objExcel = Nothing
   End Sub
End class