You are here: TI-30X Pro MathPrint™ Scientific Calculator > Math Tools > Constants

Constants

Constants lets you access scientific constants to paste in various areas of the
TI-30X Pro MathPrint™ calculator. Press % Œ to access, and ! oro" to select either the NAMES or UNITS menus of the same 20 physical constants. Use # and $ to scroll through the list of constants in the two menus. The NAMES menu displays an abbreviated name next to the character of the constant. The UNITS menu has the same constants as NAMES but the units of the constant show in the menu.

Note: Displayed constant values are rounded. The values used for calculations are given in the following table.

Constant

Value used for calculations

c

speed of light

299792458 metres per second

g

gravitational acceleration

9.80665 metres per second2

h

Planck’s constant

6.626070040×10M34 Joule seconds

NA

Avogadro’s number

6.022140857×1023 molecules per mole

R

ideal gas constant

8.3144598 Joules per mole per Kelvin

me

electron mass

9.10938356×10M31 kilograms

mp

proton mass

1.672621898×10M27 kilograms

mn

neutron mass

1.674927471×10M27 kilograms

mm

muon mass

1.883531594×10M28 kilograms

G

universal gravitation

6.67408×10M11 meters3 per kilogram per seconds2

F

Faraday constant

96485.33289 Coulombs per mole

a0

Bohr radius

5.2917721067×10M11 metres

re

classical electron radius

2.8179403227×10M15 metres

k

Boltzmann constant

1.38064852×10M23 Joules per Kelvin

e

electron charge

1.6021766208×10M19 Coulombs

u

atomic mass unit

1.66053904×10M27 kilograms

atm

standard atmosphere

101325 Pascals

H0

permittivity of vacuum

8.85418781762×10M12 Farads per metre

m0

permeability of vacuum

1.256637061436×10M6 Newtons per ampere2

Cc

Coulomb’s constant

8.987551787368×109 metres per Farad