---
title: Introduction to Numbers and Other Values
framework: cocoa
role: article
path: apple-archive/documentation/Cocoa/Conceptual/NumbersandValues
---

# Introduction to Numbers and Other Values

Explains how to use Cocoa object wrappers for primitive C data types.

## Organization of This Document

This document contains the following articles:

- [Using Values](Articles/Values.html#//apple_ref/doc/uid/20000174-BAJJHDEG) describes the generic value type. - [Using Numbers](Articles/Numbers.html#//apple_ref/doc/uid/20000175-BCIFIJIE) describes scalars. - [Using Decimal Numbers](Articles/DecimalNumbers.html#//apple_ref/doc/uid/20000176-CJBCAGDI) describes the objects used for base-10 arithmetic. - [Using NSNull](Articles/Null.html#//apple_ref/doc/uid/TP40005153-SW1) describes using the `NSNull` instance.

[Next](Articles/Values.html)

Copyright © 2008 Apple Inc. All Rights Reserved. [Terms of Use](http://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](http://www.apple.com/privacy/) | Updated: 2008-02-08