Texas Instruments TINSPIRE User Manual

434 Using Variables
• Characters can consist of letters, digits, and the underscore character
(_). Letters can be U.S. or Greek letters (but not Π or p), accented
letters, and international letters.
• Do not use
c or n from the symbol palette to construct a variable
name such as c1 or n12. These may appear to be letters, but they are
treated internally as special symbols.
• You can use uppercase or lowercase letters. The names AB22, Ab22,
aB22, and ab22 all refer to the same variable.
• You cannot use a digit as the first character of xxx or yyy.
• Do not use spaces.
• If you want a variable to be treated as a complex number, use an
underscore as the last character of the name.
• CAS: If you want a variable to be treated as a type of unit (such as _m
or _ft), use an underscore as the first character of the name. You
cannot use subsequent underscores in the name.
• You cannot use an underscore as the first character of the name.
• You cannot use a preassigned variable, function, or command name,
such as Ans, min, or tan.
Note: For a complete list of TI-Nspire™ functions, refer to the
Reference Guide.
• Library documents and library objects are subject to additional
naming restrictions. For details, see the “Libraries” section of the
documentation.
Here are some examples:
Variable names Valid?
Myvar, my.var Yes
My var, list 1 No. Contains a space.
a, b, c Yes
Log, Ans No. Preassigned to a system function or variable.
Log1, list1.a, list1.b Yes
3rdTotal, list1.1 No. xxx or yyy starts with a digit.

Texas Instruments TINSPIRE Specifications

General

Model	TI-Nspire
Resolution	320 x 240 pixels
Operating System	TI-Nspire OS
Display	LCD
Screen Size	3.2 inches
Color Depth	16-bit
Battery	4 AAA batteries
Connectivity	USB

Summary

TI-Nspire™ Navigator™ Teacher Software Guidebook

Setting up the TI-Nspire™ Navigator™ Teacher Software

Installing the handheld software

Ensures the latest operating system is installed on handhelds for proper software function and guides the installation process.

Creating and managing your teacher account

Explains how to create a teacher account in Teacher Preferences to log in to the TI-Nspire™ Navigator™ network from a handheld.

Logging in to the TI-Nspire™ Navigator™ system from the handheld

Guides users on how to log in to the TI-Nspire™ Navigator™ network from their handheld for system communication.

Getting started with the TI-Nspire™ Navigator™ Teacher Software

Using the Documents Workspace

Updating the handheld OS

Using the Class Workspace

Adding a class

Beginning and ending a class session

Guides users on starting, pausing, resuming, and ending a class session for communication with selected classes.

Using Live Presenter

Starting Live Presenter

Provides instructions on how to start Live Presenter by selecting a student or the teacher handheld.

Recording the live presentation

Guides users on how to record and save the live presentation as a movie file (.avi).

Using Question in the Teacher Software

Adding questions

Polling students

Opening the Quick Poll tool

Viewing poll results

Using the Scratchpad

Calculating with the Scratchpad

Details how to enter and evaluate math expressions, control result format, and use the Catalog for inserting functions and symbols.

Graphing with the Scratchpad

Guides users on how to graph functions, scatter plots, and sequences, including choosing graph types and using the entry line.

Calculator

Entering and evaluating math expressions

Details how to enter simple math expressions, control result format, and use the Catalog for inserting functions and symbols.

Calculator menu

Using Variables

Creating variables

Guides users on how any portion or attribute of an object or function can be stored as a variable.

Locking and unlocking variables

Graphs & Geometry

Graphs & Geometry menu

Using Lists & Spreadsheet

Creating and sharing spreadsheet data as lists

Plotting statistical data

Using Data & Statistics

Creating a normal probability plot

Creating a scatter plot

Programming

Overview of the Program Editor

Introduces the Program Editor for defining, editing, and managing user-defined functions and programs.

Defining a program or function

Guides users on starting a new program or function, defining names, types, and library access.

Data Collection and Analysis

Performing an experiment

Provides an overview of the typical process for performing an experiment, with brief steps and references to detailed sections.

Using advanced data collection options

Covers setting up offline sensors, remote collection units, and triggering for advanced data collection.

Using the TI-SmartView™ emulator

Opening the TI-SmartView™ emulator

Using Screen Capture