Texas Instruments TI-Nspire CAS User Manual

Text
Catalog >
TextpromptString[, DispFlag]
Programming command: Pauses the
program and displays the character string
promptString in a dialog box.
When the user selects OK, program
execution continues.
The optional flag argument can be any
expression.
• If DispFlag is omitted or evaluates to 1,
the text message is added to the
Calculator history.
• If DispFlag evaluates to 0, the text
message is not added to the history.
If the program needs a typed response from
the user, refer to Request, page 146, or
RequestStr, page 147.
Note: You can use this command within a
user-defined program but not within a
function.
Define a program that pauses to display
each of five random numbers ina dialog
box.
Within the Prgm...EndPrgm template,
complete eachline by pressing @ instead
of ·. On the computer keyboard, hold
down Alt and press Enter.
Define text_demo()=Prgm
For i,1,5
strinfo:=”Random number “&
string(rand(i))
Text strinfo
EndFor
EndPrgm
Run the program:
text_demo()
Sample of one dialog box:
Then
See If, page 86.
tInterval
Catalog >
tInterval List[, Freq[, CLevel]]
(Data list input)
tInterval v, sx, n[, CLevel]
(Summary stats input)
Computes a t confidence interval. A
summary of results is stored in the
stat.results variable. (See page 172.)
Alphabetical Listing 183

Texas Instruments TI-Nspire CAS Specifications

General

Type	Graphing
Cover	-
Form factor	Pocket
Control type	Buttons, Touch
Product color	Grey, Silver
Digits	- digits
Display tilting	No
Display resolution	320 x 240 pixels
Display number of lines	- lines
Compatible operating systems	Windows XP/2000\\r Mac OS X 10.4/10.5
Battery type	AAA
Power source	Battery
Number of batteries supported	4
USB port	Yes
USB 2.0 ports quantity	1
RAM capacity	16 MB
ROM capacity	20 MB

Weight and Dimensions

Depth	198.3 mm
Width	100 mm
Height	28.7 mm

Summary

Important Information

License

Discusses software license terms and conditions.

Expression Templates

Fraction template

Template for entering fractions.

Exponent template

Template for entering exponents.

Matrix template (m x n)

Template for creating mxn matrices.

First derivative template

Template for calculating first derivatives.

Alphabetical Listing

abs()

Returns the absolute value of the argument.

angle()

Returns the angle of an argument as a complex number.

ANOVA

Performs one-way analysis of variance.

approx()

Evaluates arguments to decimal values.

Symbols

+ (add)

Returns the sum of two arguments.

- (subtract)

Returns the difference between two arguments.

* (multiply)

Returns the product of two arguments.

/ (divide)

Returns the quotient of two arguments.

EOS™ (Equation Operating System) Hierarchy

Order of Evaluation

Details the priority levels for operators and functions.

Parentheses, Brackets, and Braces

Explains how grouped expressions are evaluated first.

Error Codes and Messages

Error code

Lists numeric error codes and their descriptions.

Warning Codes and Messages

Lists numeric warning codes and their associated messages.

Shortcuts for Entering Math Expressions

From the Handheld or Computer Keyboard

Lists shortcuts for handheld and computer input.

From the Computer Keyboard

Lists shortcuts specific to computer keyboard input.