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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.
1. Enter the number you want to convert.
2. Press [ 2nd ] [ CONV ] to display the menu. There are 7
menus, covering distance, area, temperature, capacity,
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 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
N
A
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
m
p
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