C-Sharp Log10 Example – Code Sample Syntax
C-Sharp Log10 Example – Code Sample Syntax
Purpose: – Illustrates using C-Sharp Log10 Code Example.
Purpose:
takes a double data type number and returns the base 10
logarithm as a double data type.
Syntax:
Log10(doublenumber)
Log10(doublenumber)
| Parameters | Description | doublenumber | Any valid System.Double data type number 1. Positive – returns base 10 logarithm of the input parameter 2. Zero – returns -Negative Infinity 3. Negative – returns NaN (Not a Number) |
|---|
| Result Data Type | Description | double | returns the base 10 logarithm of the input parameter |
|---|
| Quick Example | Log10(100) // Returns 2 |
|---|
Step 1: Click cs to Cut-n-paste code into clsLog10.cs
using System;
public class clsLog10
{
public void Main()
{
//********************************************************************************
// Purpose: takes a double data type number and returns the base 10
// logarithm as a double data type.
//
//
// Syntax: Log10(doublenumber)
//
// Parameter1: doublenumber - Any valid System.Double data type number
// 1. Positive - returns base 10 logarithm of the input parameter
// 2. Zero - returns -Negative Infinity
// 3. Negative - returns NaN (Not a Number)
//
// Result: double - returns the base 10 logarithm of the input parameter
//
// Quick Example: Log10(100) // Returns 2
//
//********************************************************************************
// This example is from http://idealprogrammer.com
Console.WriteLine("Example #1: Log10(doublenumber)");
Console.WriteLine("Log10(100) = {0}", Math.Log10(100)); // Returns 2
//write blank line to make output easier to read
Console.WriteLine();
Console.WriteLine("Example #2: Log10(doublenumber)");
Console.WriteLine("Log10(1000) = {0}", Math.Log10(1000)); // Returns 3
//write blank line to make output easier to read
Console.WriteLine();
Console.WriteLine("Example #3: Log10(doublenumber)");
Console.WriteLine("Log10(0) = {0}", Math.Log10(0)); // Returns -Infinity
//Prevent console from closing before you press enter
Console.ReadLine();
}
} |
Step 2: Click cs to Cut-n-paste code into Module1.cs
Module Module1
Sub Main()
Dim myclsLog10 As New clsLog10
myclsLog10.Main()
End Sub
End Module |
Prerequistes:
- Install C-Sharp (Express or Standard Edition)
- Install SQL Server Express
- Download Northwind and pubs Database
- Attach Northwind Database to Databases in Sql Express
- 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.cs
Instructions:
- Use C-Sharp 2010 Express or Standard Edition
- Create new project;
- Click File/New Project
- Select Console Application Template
- Select C-Sharp for Language
- name of project could be C-Sharp_Syntax.
- Add New folder named “Functions”
- Right-click project name in solution explorer;
- add new folder;
- name of folder could be: Functions
- Add New subfolder named “MathFunctions”
- Right-click Functions folder in solution explorer;
- add new folder;
- name of folder could be: MathFunctions
- Add Class Named clsLog10 to MathFunctions folder
- Right-click MathFunctions folder;
- add new item;
- Select class
- Class name could be clsLog10
- Click on cs in code in step 1 above to copy code into clsLog10.cs
- Click on cs in code in step 2 above to copy code into Module1.cs
- Click green arrow or press F5 to run program
