17
Chapter 2: Operating the Graphing Calculator
ALPHA Key
Use
A
to enter an alphabet character. All 26 alphabet characters from “A” up to
“Z”, “
θ
”, “=”, “ : ”, and space can be typed.
All functions associated with
A
are color coded blue, and are printed above each
key.
Note:
Do not type out math figures (
sin
,
log
, etc.), graph equation
names (
Y1
,
Y2
, etc.), or list names (
L1
,
L2
, etc.), etc. with
A
keys. If “SIN” is entered from
A
mode, then each alphabet
character — “S”, “I” and “N” — will be entered as a variable. Call
up the figure and equation names from within the second func-
tions and various menus instead. If a colon (:) is used, data may
continue to be entered in more than one term.
Example
Enter 2
×
A on the screen.
1. Press
#
C
to clear the
screen. Enter “2
×
” by pressing 2
|
.
2. To enter “A”, press
A
; the
cursor pattern changes to “A
_” upon
releasing the key.
3. Press
A
to call “A” at the
cursor.
After the entry, the cursor pattern
changes back to normal.
To type more than one alphabet character, use
@
then
A
to apply the “ALPHA-LOCK”. When done, press
A
to escape
from the mode.
Note:
Pressing
A
}
or
{
allows you to jump to the next or
previous page within the sub-menu.
Entering one
Alphabet
character
Entering 1 or
More Alphabet
characters
