8 Chapter 1: Operating the TIN73
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
=, , >, , <,
Used to compare two values.
Logic (Boolean)
Operators
and, or
Used to interpret values as zero (false) or
nonzero (true).
The entry line