6 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 6 of 24
If all lines of the display are full,
text scrolls off the top of the
display. The TIN73 stores the
previous entries as memory
permits. See the section entitled,
Retrieving Previous Entries on
page 17.
You can scroll up with $ to see
previously entered entries. If you
press b while a previous
entry is highlighted (for
example, 2+2+2+2+2+2+2+2),
the calculator copies it to a new
line below all entries (after
4+4+4 and its result, 52).
To clear the Home screen, see the section entitled Editing
Numbers and Characters on page 11.
Entering Numbers and Other
Characters
A symbol or abbreviation of each keys primary function is
printed in white on the key. When you press that key, the
function name is inserted at the cursor location.

Entering a Negative Number Entering a Negative Number a

You enter a negative number with the negation key, a. You
can use negation to modify a number, expression, or each
element in a list. Notice that this is different from the
subtraction key, T, which CANNOT be used for negation.
Subtract M14 N 68.
-l:
a14T68b
³
Scroll up
with $.