HP HP-25 User Manual

ONromng i
Engineering
notation
is
selected
by
pressing[iij[cnc]followed
by
a
number
key.
In
engineering
notation,
the
first
three
digits
are
always
present,
and
the
number
key
specifies
the
number
of
additional
digits
displayed
after
the
first
three.
For
example:
Press Display
0.000012345
[EGo [12.3 |Engineering notation display.
First three digits visible and
power of 10 is the proper multiple
of three.
[I[EG 2 [12.345 The number key specifies the
number of digits displayed be-
yond the first three.
[Enc) 4 12.34500 -06
Notice that because the first three digits are always present, the
greatest number of additional digits that can be specified in engi-
neering notation is five.
Press Display
Kl [Eng) 5 12.345000 -06]Maximum number of digits
displayed.
6 12.345000 -06] No change in display.
H[Eng) 7 12.345000 -06]No change indisplay.
Rounding of displayed numbers in ENG 5 and ENG 6 is similar
to the rounding of numbers in SCI 7 and SCI 8, discussed earlier.
As with all display formats, engineering notation display does
not affect the actual number as it is held internally by the calcu-
lator, but only alters the manner in which the number is displayed.
When engineering notation has been selected, the decimal point
shifts to show the mantissa as units, tens, or hundreds in order
to maintain the exponent of 10 as a multiple of three. For ex-
ample, multiplying the number now in the calculator by 10
causes the decimal point to shift to the right without altering the
exponent of 10:
Press Display
HEg
o
10[x]
Decimal
point
shifts.
Power
of
10
remains at 1076,

HP HP-25 Specifications

General

Brand	HP
Model	HP-25
Category	Calculator
Language	English