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This
ZIP file (20k) contains the C# source
code for the Fraction type. All the standard operators (+. -. /, ==, !=)
are overridden to allow manipulation of
Fractional data, and IComparable is implemented.
About the code
The code was built using the Microsoft VisualStudio.NET Release Candidate on
Windows 2000 and Internet Explorer 6.0. It will soon be updated to the
released version - any comments on compatibility would be appreciated.
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Why a Fraction type?
Recipes.
While working on a database of recipes, I encountered the problem
of 'multiplying' a recipe's quantities to make a recipe for four serve
eight or twelve. Similarly, generating a shopping list from mulitple
recipes requires adding 1 1/2 cups flour to 3/4 cup flour and
being able to represent the result as a fraction.
The Fraction type is easy to use:
Fraction f1, f2, f3;
f1 = new Fraction(1,3,5);
f2 = new Fraction(-2,1,4);
f3 = new Fraction(1,2);
and facilitates the following operations:
(1/2 == 2/4) = True
1/2 * 1/2 = 1/4
1/4 / 2 = 1/8
(-5/8) - 2= -2 5/8
2 + (-5/8) = 1 3/8
The Fraction code is available to
view
and download. You can see the results of
testing here.
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Useful links
View the code!
C# code demonstrating various concepts
GotDotNet.com QuickStart
Read the .NET sample code for operator override.
Complex Numbers Class
Similar sample, modelling complex (real+imaginary) numbers.
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