Citizen SRP-280N Benutzerhandbuch
E – 15
File name : CBM_SR285,A_HDBSR285T19_English.doc
version : 2010/04/26
Other Functions ( x
–1
, √,
X
, x
2
, ^ )
z
The calculator also provides reciprocal ( [ x
–1
] ), square root
( [ √ ] ), universal root ( [
X
] ), square ( [ x
2
] ) and
exponentiation ( [ ^ ] ) functions. See Example 47~50.
Unit Conversions
z
The calculator has a built-in unit conversion feature that enables
you to convert numbers from metric to English units and vice
versa. See Example 51.
you to convert numbers from metric to English units and vice
versa. See Example 51.
1. Enter the number you want to convert.
2. Press [ 2nd ] [ CONV ] to display the menu. There are 7
2. Press [ 2nd ] [ CONV ] to display the menu. There are 7
menus, covering distance, area, temperature, capacity,
weight, energy, and pressure.
weight, energy, and pressure.
3. Use the [ ] [ ] to scroll through the list of units until a
appropriate units menu is shown, then [
].
4. Pressing
[ ] or [ ] can convert the number to another
unit.
Physical Constants
z
You can use a number of physical constants in your calculations.
See table below :
Symbol Meaning
See table below :
Symbol Meaning
Value
c
Speed of light in vacuum
299792458 m / s
g
Acceleration of gravity
9.80665 m.s
–2
G Gravitational
constant
6.6725985 x 10
–11
N.m
2
kg
–2
Vm
molar volume of ideal gas
0.0224141 m
3
mol
–1
NA
Avagadro's number
6.022136736 x 10
23
mol
–1
e
Elementary charge
1.6021773349 x 10
–19
C
me
Electron mass
9.109389754 x 10
–31
kg
mp
Proton mass
1.672623110 x 10
–27
kg
h
Plank's constant
6.626075540 x 10
–34
J.s
k
Boltzmann's constant
1.38065812 x 10
–23
J.K
–1
R
Gas constant
8.3145107 J / mol
z
k
F
Faraday constant
96485.30929 C / mol
mn
Neutron constant
1.67492861 x 10
–27
kg
µ
Atomic mass constant
1.66054021 x 10
–27
kg
ε
0
Dielectric permittivity
8.854187818 x 10
–12
F/m
µ
0
Magnetic permittivity
1.256637061 x 10
–6
H / m
φ
0
Flux quantum
2.0678346161 x 10
–15
Vs
a
0
Bohr radius
5.2917724924 x 10
–11
m
µB
Bohr magneton
9.274015431 x 10
–24
A
z
m
2
µN
Neutron magnetic moment
5.050786617 x 10
–27
J / T