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HP 25 User Manual

HP 25
132 pages
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Function Keys 65
Press
Display
I
5.00
I
I
0.33
I
Reciprocalof3.
:=
1 =
1.
=
71
======i
1
Cube
root
of
5.
Example:
An aircra
ft
pilot reads a pressure altitude (PA L
T)of
25
,500 feet with a calibrated airspeed (CAS)
of
350
knots. What
is
the flight mach number
speed
of
aircraft
M =
---:-----,,---,-
speed
of
sound
if the following formula
is
applicable?
M=
Method:
The
most efficient place to begin work on this problem
is
at the innermost set
of
brackets. So begin by solving for the
quantity
t
6!~~5
j 2 and proceed outward from there.
Press Display
350mmiD
661.5 B
:=
1
0
=
.5
o=
3
===
~1
iii
[£]
I 0.28 I
Squ
a
r
~
of
bracketed
quantIty .
11.06 I
.
201
EJ
3.5 0 0 1
EJ
I 0.21 I
Contents
ofleft-hand
set
'--"'=-=-
--
-
---'
of
brackets are
in
the stack.
I
mmiD
6.875
_I
6.875
00
I
ram
6
mmiD
I 6.
8750000
-06
I
255000
EJ I 0.82 I
5.2656
Eml
0 0
1:=
2
~
.
~
76
~
=====i1
Contents
of
right-hand
s
et
of
brackets are
in
the stack.
01EJ
rl-
1.5
-
8
--
----~
1
.286 0
1EJ
I 0.14 I
50
0
~
1
0.84
I Ma
chnumberoftheflight.

Table of Contents

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HP 25 Specifications

General IconGeneral
Power SourceRechargeable battery pack
Programming Steps49
Release Year1975
FunctionsTrigonometric, logarithmic, statistical
TypeScientific
Dimensions148 x 80 x 14 mm

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