HP 9s User Manual

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Brand: HP

Category: Calculator

Type: Practices for HP 9s

Pages: 5

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hp calculators
HP 9s Powers and Roots
n
n
)a...aa(G =
21
which can be calculated in fewer keystrokes:
2*3.4*3.41*7*11*23\~b6\
nswer:
A G =5.873725441
here cannot be more than six pending operations on the HP 9s (e.g. 1 + ( 1 + ( 1 + ( 1 + ( 1 + ( 1 + ( 1 + generates an
? Well, let’s see if the Hp 9s can solve the following formula, which has been taken
om the cover of the HP-67 Owner’s Handbook and Programming Guide, and was used as an example of the value of
T
error condition). Is that much limitation
fr
HP’s RPN logic system.
Example 9: In a rather overoptimistic effort to break the speed of sound, high-flying pilot Ike Daedalus cranks open the
throttle on h
is surplus Hawker Siddeley Harrier aircraft. From his instruments he reads a pressure altitude
(PALT) of 25,500 feet with a calibration airspeed (CAS) of 350 knots. What is the flight mach number
sound of speed
aircraft of speed
M =
if the following formula is applicable?
[]
+
×
+=
112550010875611
5661
350
2015
2860
26565
6
53
2
.
.
.
).(
.
.M
Solution: If the problem seems very complex and you are not sure that your HP 9s can handle it, evaluate the
problem in parts, displaying intermediate results by pressing \. In this particular case, though, the
HP 9s can evaluate this formula as it is stated from left to right, without having to press the \key at all:
5500NB5.2656=+1NB.286-1N
Answer:
M5*MMMM1+.2*M350/661.5N
ONB3.5-1N*M1-6.875A=6*2
NF
M = 0.835724535
hp calculators - 5 - HP 9s Powers and Roots - Version 1.0