beautypg.com

Texas Instruments TI-73 EXPLORER User Manual

Page 14

background image

8

Chapter 1: Operating the TI

N73

7301ENG.DOC CH1 Operating the TI-73, English Julie Hewlett Revised: 07/29/98 11:55 AM Printed: 05/19/99

8:58 AM Page 8 of 24

In all guidebook examples, when a character in the Text editor

needs to be selected, the keystroke sequence shows the

character followed by b. Moving the Selection Cursor as

necessary to highlight the character is implied. To exit the

Text editor and display the contents on the entry line on the

previous screen, select

Done

.

- t

Selection Cursor

›

Highlights the character you want to

select. Use the cursor keys (", !, $, and

#) to move the cursor.

A

is highlighted

with the selection cursor in the - t

example screen.

Letters

(A-Z)

Lists letters A-Z in alphabetical order.

List Braces

{ }

Surround a set of numbers separated by

commas to create a list (outside of the List

editor). For example,

{1,2,3}

on the Home

screen is interpreted as a list.

Quotation Mark (

"

) Surrounds the first text element in a

categorical list or surrounds an attached

list formula. (See Chapter 5: Lists for more

information.)

Space (

_

)

Places a space between characters. It is

frequently used in programs.

Test Operators

=,

ƒ

, >,

‚

, <,



Used to compare two values.

Logic (Boolean)

Operators

and, or

Used to interpret values as zero (false) or

nonzero (true).

The entry line