VB.NET Tanh Example – Code Sample Syntax

VB.NET Tanh Example – Code Sample Syntax

Purpose: – Illustrates using .

Purpose:
converts an angle measured in radians to a hyperbolic tangent. (you can convert
the radians to degrees by multiplying them by Math.PI/180)

Syntax:
Tanh(doublenumber)

Parameters Description
doublenumber double percision floating point
number representing an angle measured in radians.

Result Data Type Description
double represents the hyperbolic tangent of the angle specified in
parameter1. If parameter1 is equal to NegativeInfinity,
-1 is returned. If parameter1 is NaN,
NaN (Not a Number) is returned. If parameter1
is PositiveInfinity, +1 is returned.

Step 1: Click Visual Basic to Cut-n-paste code into clsTanh.vb

Imports System.Math
Public Class clsTanh
 
    Public Sub Main()
 
 
        '********************************************************************************
        ' Purpose: converts an angle measured in radians to a hyperbolic tangent.  (you can convert 
        ' the radians to degrees by multiplying them by Math.PI/180) 
        ' 
        ' Syntax: 	Tanh(doublenumber)
        '  
        ' Parameter1: doublenumber - double percision floating point 
        ' number representing an angle measured in radians. 
        '
        ' Result: double - represents the hyperbolic tangent of the angle specified in 
        ' parameter1. If parameter1 is equal to NegativeInfinity, 
        ' -1 is returned. If parameter1 is NaN, 
        ' NaN (Not a Number) is returned. If parameter1
        ' is PositiveInfinity, +1 is returned.
        '
        '********************************************************************************
        ' This example is from http://idealprogrammer.com
 
        Console.WriteLine("Example #1: 	Tanh(doublenumber)")
 
        Dim radians As Double = 30 * 180 / Math.PI
 
        Console.WriteLine("Tanh(radians) = {0}", Tanh(radians)) ' Returns 1
 
        'write blank line to make output easier to read
        Console.WriteLine()
 
        Console.WriteLine("Example #2: 	Tanh(doublenumber)")
 
        radians = -90 * 180 / Math.PI
 
        Console.WriteLine("Tanh(radians) = {0}", Tanh(radians)) ' Returns -1
        'write blank line to make output easier to read
        Console.WriteLine()
 
        Console.WriteLine("Example #3: 	Tanh(doublenumber)")
 
        Dim Integer3 As Integer = Tanh(-0)
 
        radians = 180 * 180 / Math.PI
 
        Console.WriteLine("Tanh(radians) = {0}", Tanh(radians)) ' Returns 1
 
        'Prevent console from closing before you press enter
        Console.ReadLine()
 
    End Sub
 
End Class

Step 2: Click Visual Basic to Cut-n-paste code into Module1.vb

Module Module1
 
    Sub Main()
 
 
        Dim myclsTanh As New clsTanh
        myclsTanh.Main()
 
 
 
    End Sub
 
End Module

Prerequistes:

  1. Install Visual Basic (Express or Standard Edition)
  2. Install SQL Server Express
  3. Download Northwind and pubs Database
  4. Attach Northwind Database to Databases in Sql Express
  5. Attach pubs Database to Databases in Sql Express

Notes:

  • Console Application is used to simplify things, but Windows Forms or Web Forms could also be used
  • You can build a library of syntax examples by using same project over and over and just commenting out what you do not want to execute in Module1.vb

Instructions:
VB.NET Syntax Functions Tanh

  1. Use Visual Basic 2010 Express or Standard Edition
  2. Create new project;
    • Click File/New Project
    • Select Console Application Template
    • Select Visual Basic for Language
    • name of project could be VBNET_Syntax.
  3. Add New folder named “Functions”
    • Right-click project name in solution explorer;
    • add new folder;
    • name of folder could be: Functions
  4. Add New subfolder named “MathFunctions”
    • Right-click Functions folder in solution explorer;
    • add new folder;
    • name of folder could be: MathFunctions
  5. Add Class Named clsTanh to MathFunctions folder
    • Right-click MathFunctions folder;
    • add new item;
    • Select class
    • Class name could be clsTanh
  6. Click on Visual Basic in code in step 1 above to copy code into clsTanh.vb
  7. Click on Visual Basic in code in step 2 above to copy code into Module1.vb
  8. Click green arrow or press F5 to run program