1-4 Operating the TI-80
The TI.80 displays both text and graphs. Graphs are described in Chapters 4 and 5.
The primary screen of the TI-80 is the Home screen. You enter
instructions to be executed, expressions to be evaluated, and
see the results on the Home screen.
When text is displayed, the TI-80 screen can show a maximum
of eight lines with 16 characters each.
¦If all lines of the display are filled, text “scrolls” off the top
of the display.
¦If an expression on the Home screen, the Y= editor
(Chapter 4), or the program editor (Chapter 10) is longer
than one line, it wraps to the beginning of the next line.
¦On numeric editors such as the Window screen
(Chapter 4), an expression scrolls to the left and right.
When an entry is executed on the Home screen, the answer is
displayed on the right side of the next line.
Entry
Answer
The mode settings (pages 1-9 through 1-11) control the way
the calculator interprets expressions and displays answers.
If an answer is too long to display in its entirety, you can press
9 and 6 to scroll the answer so that you can view all of it. In
the second example below, the open brace without a
corresponding close brace indicates that the list is too long to
be displayed in its entirety.
Entry
Answer
Answer
Answer (scrolled)
To return to the Home screen from any other screen, press
y ..
The Display
Home Screen
Displaying
Entries and
Answers
Returning to the
Home Screen