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30
Controlling the Display
However, multiplying again by 10
causes
the exponent to
shift
to
another
multiple of three
and
the decimal point to move to
the
units position:
Press
100
Display
I
L
1
: ..:
.
::.-
23
"
--_ _
-
=c
03
:
o.-J1
Decimal point
shifts.
Power
of
I 0 shifts to
10-
:)
.
Automatic Display Switching
The HP-25
switches
the display from fixed point notation
to full
scientific
notation
(SC
I
7) whenever the
number is too
large or
too
small
to be seen with
a
fixed decimal point. This
feature
keeps you from missing unexpectedly large
or
small
answers.
For
example
,
if you try to
solve (.05)3
in normal
FIX 2 display
,
the
answer
is automatically
shown
in
scientific
notation:
Press
-
D
!£iKJ
2
.051mmJ
3D
CZl
Display
1
0.00
00
1
ENG
0 from previous
example.
1~0
=
.0
=
0
~==~1
Normal FIX
2 display.
1
0.
05
1
1
1.2500000-04
1
Display
a
utomatically
switched
to SCI 7 to show
answer.
Another
way
of
displaying the
a
nswer
would
be
0.000125
,
but in
normal FIX
2
display,
you would
have
seen only
I
0.00
I
dis-
played
.
After
automatically switching from fixed to scientific, when a
new number
is
keyed in
or
_
is
pressed the
display
au to-
matically reverts back to the
fixed point display originally
selected
.
The H P-25
also switches
to
scientific
notation if
the answer
is
too large
(>
1010)
for fixed
point display
.
The
display will not
switch
from
fixed if you
solve
1582000
x 1842:
Press
Display
1582000
ImIm
"1
1'--- 5~
82
"-
0
-
0--'- 0.-'-
0-
0
-~
1842
0
12914044000.
1
Fixed decimal point display.
However, if you multiply the result by
10,
the answer
is too
large
for
fixed point notation,
and switches automatically
to
scientific
notation:
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