Texas Instruments TI-Nspire CX II Manual

TI-Nspire™ CX II
Online Calculator
Guidebook
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Actual products may vary slightly from provided images.

Contents
TI-Nspire™ CX II Online Calculator 1
Getting Started 1
Using the Calculator Workspace 4
Managing Documents 7
Capturing the Calculator Screen 9
TI-Nspire™ CX II Online Calculator Keys 10
The TI-Nspire™ CX II Online Calculator Screen 11
Using Hints 12
Using the Scratchpad 13
Inserting Items from the Catalog 13
Viewing the History 16
Editing Scratchpad Expressions 17
Graphing with the Scratchpad 17
Working with Documents on the TI-Nspire™ CX II Online Calculator 23
Working with Applications 23
Context Menus 28
Working with Problems and Pages 28
Adding a Problem to a Document 28
Viewing and Reordering Pages in a Document 29
Understanding the TI-Nspire™ Tools 32
Keyboard Shortcuts 35
General Information 41
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TI-Nspire™ CX II Online Calculator
TI-Nspire™ CX II online calculator is a standalone web-based application that provides
the basic functionality of the TI-Nspire™ CX II graphing calculator on any compatible
computer.
System Requirements
• Browser
- Google Chrome (latest version recommended)
• Computer
- Chromebook™
- Windows® 10 or Windows® 11
- macOS® 12 or 13
• Active internet connection
• Access to shared memory, files, and clipboard
Supported Calculators
• TI-Nspire™ CX II (non-CAS)
Image Disclaimer
Actual products may vary slightly from provided images.
Getting Started
1. Open a compatible browser.
2. Enter nspirecxii.ti.com into the address bar.
If prompted, click Agree and Proceed to accept cookies, and then click ACCEPT
button to agree with the TIterms and conditions.
A compatibility check will be performed while the application loads. If any issues
are found, a page will display with information on what needs to be addressed.
TI-Nspire™ CX II Online Calculator 1

2 TI-Nspire™ CX II Online Calculator
Note: Click LEARN MORE to view licensing and other information on the TI
Education Technology website.
3. Click the SIGN IN button.
The Texas Instruments SIGN IN dialog will display.
4. Enter your Texas Instruments account sign in credentials.
When the document prompt displays, you can select to open an existing .tns file or
create a new one.

Note: You can only create or open one .tns file at a time.
To open an existing document from your computer
1. Click the OPEN DOCUMENT FROM COMPUTER button.
2. On the Open dialog box, locate and select the document.
3. Click Open.
The document will open in the workspace.
To create a new document
▶Click the CREATE A NEW DOCUMENT button.
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4 TI-Nspire™ CX II Online Calculator
The calculator workspace is displayed with the app menu open.
Using the Calculator Workspace
The TI-Nspire™ CX II online calculator workspace has three main areas:
Function Bar
Calculator Keypad
Calculator Workspace
Screen Focus
When you are working with the calculator, the area of the screen you were last
interacting with is highlighted with a blue outline. Any keystrokes or keyboard
shortcuts will only affect that part of the screen, if available.
You can change the focus by clicking on one side or the other.
Focus on the calculator keypad:

Focus on the calculator screen:
Function Bar
ÀDocument menu
• New Document
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6 TI-Nspire™ CX II Online Calculator
• Open from Computer
• Save to Computer
• Close Document
See Managing Documents for more information.
ÁLarge Screen: Allows you to toggle between the default large screen view and the full
calculator view.
ÂScreen Capture: Allows you to capture the calculator screen for use in other apps.
See Capturing the Calculator Screen for more information.
ÃConnectivity: Launches the TI-Nspire™ CX IIConnect app in a new tab where you can
connect your TI-Nspire™ CX IIgraphing calculator to capture screens, transfer .tns files,
and update the OS.
ÄHelp menu
• Help (Online)
• Visit Resources
• About TI-Nspire CX II
Document Tools
ÀInsert: Allows you to insert a problem, page, or app in the document.
ÁUndo/Redo: Allows you to undo or redo the previous action.
ÂPrevious Page/Next Page: Allows you to navigate between pages in your document.

Resize Bar
You can move the resize bar left or right to dynamically change the size of the keypad
and work area to meet your needs.
Account Info and Sign Out
Clicking the Account Info icon will open a dialog box that displays basic information
about your account.
•Account Info: Your Texas Instruments account email address/user name.
•Subscription Expiration: The date your Texas Instruments subscription will expire.
•SIGN OUT button: Signing out will disconnect you from any Texas Instrument
product your account has access to.
Click anywhere on the screen other than the SIGN OUT button or press the esc button
on your keyboard to return to the calculator workspace.
Managing Documents
Document management with the TI-Nspire™ CX IIonline calculator is slightly different
than on the graphing calculator. Since your work is based in a browser session, there is
no active file in use.
Therefore, the New, Open, Save, and Close functions are performed with the Function
Bar instead of the Documents > File menu options or the X button. Those options have
been disabled in the File menu and the X has been removed from the top right corner
as shown below.
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CAUTION: Any changes you make to a document are not auto-saved. They only exist in
the current browser session. You must manually save them (see the Save to Computer
section below) in order to capture any changes since the last save.
Also note that:
• Each document is divided into at least one, and up to 30, problems.
• Each problem contains at least one, and up to 50, pages.
• Each page can be divided into as many as four work areas.
• Each work area can contain any of the TI-Nspire™ applications (Calculator, Graph,
Geometry, Lists & Spreadsheet, Data & Statistics, Notes, Program Editor, and
Python).
New Document
Note: These steps are for the workspace page. You can also create a new document on
the Document Prompt page.
To create a document
1. Click the Document icon on the Function Bar.
2. Click New Document.
The workspace will refresh and display an empty document.
Open from Computer
Note: These steps are for the workspace page. You can also open an existing document
on the Document Prompt page.
To open a document
1. Click the Document icon on the Function Bar.
2. Click Open from Computer.
3. Select the file you want to open and click Open.
The workspace will refresh and display the document you chose.
Save to Computer
To save a document
1. Click the Document icon on the function bar.
2. Click Save to Computer.
3. Select the location where you want to save the document.
4. Enter a name for the document and click Save.
If you use an existing document name, you will be prompted to overwrite the
document.

If there are unsaved changes to your document, you will be prompted to save that
document if you try to:
• create a new document,
• open an existing document,
• or close the current document.
If you try to close or reload the browser tab or window, a browser dialog box will
display indicating that there are unsaved changes. You can then choose whether to
continue without saving, or cancel and save the latest changes.
Close Document
To close a document
1. Click the Document icon on the function bar.
2. Click Close Document.
You will be returned to the Document Prompt page to open a document from your
computer or create a new document.
Capturing the Calculator Screen
After creating content in one of the calculator apps, you can capture the calculator
screen to save or share with others.
To capture the calculator screen
1. Click the Screen Capture icon on the Function Toolbar.
2. Click the CAPTURE SCREEN button.
The current calculator screen will display.
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Note: You can only capture one screen at a time. To capture another screen, make
the necessary changes on the calculator and click the CAPTURE SCREEN button
again.
3. Click one of the following buttons:
- Copies the current screen to the computer clipboard and use the image in
other apps.
- Saves the current screen to your computer.
You can also drag-and-drop the image to other apps like Google docs, Microsoft
Word, etc.
Tip: To see the entire calculator workspace while capturing the screen, use the Resize
Bar to shrink the size of the keypad until the workspace is no longer blocked by the
screen capture popup.
TI-Nspire™ CX II Online Calculator Keys
Use the calculator keypad as you would the TI-Nspire™ Touchpad.
dRemoves menus or dialog boxes from
the screen. Also stops a calculation in
progress.
cDisplays the home screen.
~Opens the Document menu.

»Opens the Scratchpad for performing
quick calculations and graphing.
eMoves to the next entry field.
gMakes the next character typed
upper-case.
/Provides access to the function or
character shown above each key. Also
enables shortcuts in combination with other
keys.
bDisplays the application or context
menu.
.Deletes the previous character.
hDisplays stored variables.
·Evaluates an expression, executes an
instruction, or selects a menu item.
Note: A¢symbol on a key indicates access to multiple options. To access an option,
press ºrepeatedly or use the arrow keys on the calculator keypad. Press ·or click
to select the option.
The TI-Nspire™ CX II Online Calculator Screen
When you are working in a document, icons at the top of the screen provide
information about the status of operations and provide an easy way to change settings.
The icons are described below.
Icon Function
¡ ¢ Page scrolling arrows - Use the calculator keypad to click these arrows and
scroll through the pages in a document.
Page tab - Labels the problem number and page number of the active page.
For example, a label of 1.2 identifies Problem1, Page2. If problems are
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Icon Function
named, hover the pointer over a tab to view the page name.
*Doc Document name - Shows the current document name. An asterisk by the
document name indicates changes were made since the document was last
saved. Click the name to open the Documents menu.
CAPS Shows status of the g,/, andÊkeys.
RAD Angle Mode - Shows an abbreviation of the angle mode (Degrees, Radians,
or Gradians) in effect. Hover the pointer over the indicator to see the full
name.
Note: Click the indicator to toggle between RAD and DEG modes.
Settings & Status - Click the icon to open the Settings & Status menu.
Using Hints
Hints are quick tips available throughout the software. There are several easy ways to
access Hints:
• Press/ µ.
• Some dialog boxes contain a question mark icon. Click this icon to open Hints for
that task.
To scroll through the Hints, use the Touchpad or arrow keys:
• To page down, press / 3.
• To page up, press / 9.
• To go to the end of the Hints file, press / 1.
• To go back to the beginning of the file, press / 7.

Using the Scratchpad
The Scratchpad is a feature of the TI-Nspire™ CX II online calculator that lets you
quickly:
• Evaluate math expressions.
• Graph functions.
Inserting Items from the Catalog
You can use the Catalog to insert functions and commands, symbols, and expression
templates into the entry line.
1. Press kto open the Catalog. By default, the first tab is displayed, which lists all
commands and functions in alphabetical order.
2. If the function you are inserting is visible in the list, select it and press ·to
insert it.
3. If the function is not visible:
a) Press a letter key to jump to the entries that begin with that letter.
b) Press ¤or £as necessary to highlight the item you are inserting.
c) Click a numbered tab to list functions by category: math functions, symbols,
math templates, library objects, and value for standard measurement units.
d) Press ·to insert the item into the entry line.
Using an Expression Template
Templates help you enter matrices, piecewise functions, systems of equations,
integrals, derivatives, products, and other math expressions.
For example, suppose you want to evaluate
1. Press tto open the Template palette.
Using the Scratchpad 13

14 Using the Scratchpad
2. Select to insert the algebraic sum template.
The template appears on the entry line with small blocks representing elements
that you can enter. A cursor appears next to one of the elements to show that you
can type a value for that element.
3. Use the arrow keys to move the cursor to each element’s position, and type a value
or expression for each element.
4. Press ·to evaluate the expression.
Inserting Expressions Using a Wizard
You can use a wizard to simplify entering some expressions. The wizard contains
labeled boxes to help you enter the arguments in the expression.
For example, suppose you want to fit a y=mx+b linear regression model to the
following two lists:
{1,2,3,4,5}
{5,8,11,14,17}
1. Press k 1 to open the Catalog and show the alphabetic list of functions.
2. Click inside the list, and then press Lto jump to the entries that begin with “L.”
3. Press ¤as necessary to highlight LinRegMx.
4. If the Wizards On option is not checked, press eeto highlight Wizards On.
5. Press ·to change the setting.
6. Press e e to highlight LinRegMx again.

7. Press ·.
A wizard opens, giving you a labeled box to type each argument.
8. Type {1,2,3,4,5} as X List.
9. Press eto move to the Y List field.
10. Type {5,8,11,14,17} as Y List.
11. If you want to store the regression equation in a specific variable, press e, and
then replace Save RegEqn To with the name of the function variable (f1 through
f99).
12. Click OK to close the wizard and insert the expression into the entry line.
The expression is inserted along with statements to copy the regression equation
and display the variable stat.results, which will contain the results.
LinRegMx {1,2,3,4,5},{5,8,11,14,17},1: CopyVar stat.RegEqn,f1: stat.results
The Scratchpad then displays the stat.results variables.
Using the Scratchpad 15

16 Using the Scratchpad
Note: You can copy values from the stat.results variables and paste them into the
entry line.
Viewing the History
Each evaluated expression and result becomes part of the Scratchpad history, displayed
above the entry line.
▶Press £or ¤to scroll through the history.
Copying a History Item to the Entry Line
You can quickly copy an expression, subexpression, or result from the history into the
entry line.
1. Press £or ¤to move through the history and select the item that you want to
copy.
2. Optionally, select part of the expression or result by using gin combination
with the arrow keys.
3. Press ·to copy the selection and insert it into the entry line.