HP HP-25 - Page 32

Controlling the Display
Press Display
1.000000094
e
In SCI 8, the display would round off to the eighth digit after the
decimal point, but you can see only out to seven digits after
the decimal:
1.000000094
You see to here . . _}L_ . . . but the calculator display
rounds to here in SCI 8.
Press Display
A [sci18
You can see that if you had keyed in 1.000000095, SCI 8 would
also have caused the display to round the seventh and final digit
after the decimal to a one (1).
Engineering Notation Display
Specified Digits
e
S —
First Three Digits Exponent of Ten Always
Always Present a Multiple of Three
Engineering Notation Display
Engineering notation allows all numbers to be shown with ex-
ponents of ten that are multiples of three (e.g., 10%, 1079, 10%).
This is particularly useful in scientific and engineering calcula-
tions, where units of measure are often specified in multiples of
three. See the prefix chart below.
Multiplier Prefix Symbol
102 tera T
10° giga G
108 mega M
108 kilo k
1073 milli m
10-¢ micro “w
10°° nano n
102 pico p
10718 femto f
10718 atto a