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.
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
NA Avagadro's number 6.022136736 x 10 23mol –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
ε0 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 –11m
µB Bohr magneton 9.274015431 x 10 –24Azm 2
µN Neutron magnetic moment 5.050786617 x 10 –27J / T