HP 25 User Manual

Controlling the Display 31
Press
Display
1 2.9140440 10 I Scientific notation display.
Notice that automatic switching is between fixed and scientific
notation display modes only-engineering notation display
must be selected from the keyboard.
Keying in Exponents of Ten
You can key in numbers mUltiplied by power s of 1 0 by pre ssing
D (enter exponent often). For example, to key in 15.6 trillion
(15.6 X
10
'2
), and multiply it by 25:
Press
Display
15.6
1 15.6
D
1 15.6 00
12
1
1
5.6
12 I (This me ans 15 .6 x 10
'2
.)
Now Press
Display
mum
1
1
.
5
600000
13
1
25~
1 3.9000000 14
I
You can save time when keying in exact powers of 10 by merely
pressing D and then pressing the desired power of 10. Fo r
example, key in I million (lOB) and divide by 52.
Press
6
mum
52 EJ
Display
IL 1_. ___ --' 0 -'- 0 -.J1 You do not have to key in the
rI 1 :- . --- 0 ::-:: 6-'1
number I befor e pressing
D when the numb er is an
ex a ct p ow er of 10.
LI -'-. 10 :...: 0 :...:: 0 .=. 0 ,,- 00 :.:. ,,- 00 =--- -,1 Since you have not spec ified
scientific
notation , the
answer revert s to fixed point
notation when YOLl press
mum.
'I 1 :;"; 9 ;-;; 2 -;;- 30 :;:- .:;:77 :;-- --, 1
To see your answer in scientific notation with six decimal places:
Press Display
a @Cil 6 1 1.923077 04

HP 25 Specifications

General

Brand	HP
Model	25
Category	Calculator
Language	English