VB.NET Asin Example – Code Sample Syntax

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VB.NET Asin Example – Code Sample Syntax

Purpose: – Illustrates using .

Purpose:
takes a double data type number that represents a sine and
returns a double value that represents the angle of that sine when
measured in radians. (you can convert the radians to degrees by
multiplying them by Math.PI/180)

Syntax:
Asin(double)

Parameters Description
double The expression represents a sine that is
to be converted into radians of an angle. Any
valid System.Double data type number between -1 and +1
if number < -1 or > 1, NaN is returned – NaN stands for Not a Number

Result Data Type Description
double represents the radians of the angle of the sine
that was specified as the input parameter.

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

 Visual Basic |  copy code |? 
Imports System.Math
Public Class clsAsin
 
    Public Sub Main()
 
 
        '********************************************************************************
        ' Purpose: takes a double data type number that represents a sine and 
        ' returns a double value that represents the angle of that sine when
        ' measured in radians. (you can convert the radians to degrees by 
        ' multiplying them by Math.PI/180) 
        ' 
        ' Syntax: 	Asin(double)
        '
        ' Parameter1: double - The expression represents a sine that is 
        ' to be converted into radians of an angle. Any 
        ' valid System.Double data type number between -1 and +1 
        ' if number < -1 or > 1, NaN is returned - NaN stands for Not a Number
        '
        ' Result: double - represents the radians of the angle of the sine 
        ' that was specified as the input parameter.
        '
        '********************************************************************************
        ' This example is from http://idealprogrammer.com
 
        Console.WriteLine("Example #1: 	Asin(double)")
 
            Console.WriteLine(Asin(90)) ' Returns NaN
 
            'write blank line to make output easier to read
            Console.WriteLine()
 
        Console.WriteLine("Example #2: 	Asin(double)")
 
            Console.WriteLine(Asin(-3.4)) ' Returns NaN
            'write blank line to make output easier to read
            Console.WriteLine()
 
        Console.WriteLine("Example #3: 	Asin(double)")
 
 
 
            Console.WriteLine(Asin(0.5)) ' Returns .523598775598299
 
            '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
 Visual Basic |  copy code |? 
Module Module1
 
    Sub Main()
 
 
        Dim myclsAsin As New clsAsin
        myclsAsin.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 Asin

  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 clsAsin to MathFunctions folder
    • Right-click MathFunctions folder;
    • add new item;
    • Select class
    • Class name could be clsAsin
  6. Click on Visual Basic in code in step 1 above to copy code into clsAsin.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

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