■
Pi key
Enters the value,
TT in the
dis.p lay.
Example:
ENTER
TOUCH
DISPLAY
Compute Circumference
of a
5
circle where: r
=
5
(rrr
2 )
-]
I/ I
I/
11
11
I
•
1111
n
:J •
I -,
I
.J :, ,- / _
I
1
, '-, -,
I I
7 I _I /-
I •_/
I
J
I I_
I
I
I
1
,
,
I
I
L/
0
_ /
_
I _/ U
I /_I _I
I
I
I
I
I
■
Change sign key
Changes
the
algebraic sign of the disp layed va
lu
e.
Example:
-1.265x15
Calculate 4.75-
714
ENTER
1.265
15
4.75
4
TOUCH
DISP
LAY
■
Exchanges
the displayed
va
lu
e w
ith
the
va
lue that
is
in the
ca
l-
cu lat
in
g reg ister.
This exchange either
reduces
key depressions
Exchange key
or the use of
the memory in
ce
rtain
seque
ntial
calcu
lat
ion
s.
Example:
4+3
(6
X
2)
+
7
-
5
.5
ENTER
6
2
7
5
4
3
TOUCH
DISPLAY
9