HP 10bII - Effect of Using Z- to Correct Data; Range of Numbers

Effect of Using £- to Correct Data
The
HP
10BII
stores
the
statistical
numbers
in
an
“accumulated”
fashion.
Tt doesn't
store
every
number
that you enter,
but rather
it performs
intermediate
calculations
when
you
press
the
Œ
key.
The
QO
key
performs
the opposite
intermediate
calculations
to effectively
remove
a
number
or pair of numbers
from
the stored
results.
When correcting statistical data, QE) does not delete rounding errors
that may occur during the intermediate calculations done by Œ. Thus,
subsequent results for corrected data may be different than for data that
was entered originally without having to use QE). However, the
difference will not be serious unless the incorrect data has a very large
magnitude compared with the correct values; in this case, you may want
to clear the statistical registers and re-enter the data.
Range of Numbers
The largest positive and negative numbers available on the calculator are
+ 9.99999999999 x 10%; the smallest positive and negative numbers
available аге +1 X 10“. Underflow briefly diplays UFLO and then
displays zero. Refer to the messages OFLO and UFLO in “Messages”
following this appendix.
B: More About Calculations 131