Exponents
off
Ten
Exponents in
the
Display.
Numbers
with
exponents
of ten
(such
as
4.2
x
10~5)
are
shown
in
the
display
with
an E
preceding
the
expo
nent
(such
as 4.2080E-5). A number whose magnitude is too large
or too small for the displayformat will automatically be displayedin
exponential form. For example, in
FIX
4 format for four decimal
places, observe the effect of the following keystrokes:
Keys:
.000062
I
ENTER
I
.000042
I ENTER
Display:
Description:
8.000062. Shows number being
entered.
0.0001
Rounds
number
to
fit
display format.
4.2000E-5 Automatically uses sci
entific
notation
because
otherwise
no
significant digits would
appear.
Keying In
Exponents
of
Ten. Use (T)
(exponent)
to key in numbers
multiplied by powers of ten. For example, take Planck's constant,
6.6262
xlO"34.
1. Key in the
mantissa
(the non-exponent part) of the number. If
this part is negative, press F£).
6.6262
6.6262.
2. Press (T). Notice
that
the cursor moves
behind
the E.
[§0
6.6262E.
3. Keyin the exponent. (Largest possible exponent is ±499.) If it is
negative, press Pip.
34
TO
6.6262E-34.
For
a
power
often
without
a
multiplier,
such
as
1034,
just
press
(T)
34.
The calculator displays
IE34.
22
1:
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