Constants lets you access scientific constants to paste in various areas of the
TI-30X Plus MathPrint™ calculator. Press % to access, and ! or " 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.
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Note: Displayed constant values are rounded. The values used for calculations are given in the following table (NIST 2018).
|
Constant |
Value used for calculations |
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|---|---|---|
|
c |
speed of light |
299792458 meters per second |
|
g |
gravitational acceleration |
9.80665 meters per second2 |
|
h |
Planck’s constant |
6.62607015×10M34 Joule seconds |
|
NA |
Avogadro’s number |
6.02214076×1023 molecules per mole |
|
R |
ideal gas constant |
8.314462618 Joules per mole per Kelvin |
|
me
|
electron mass |
9.1093837015×10M31 kilograms |
|
mp
|
proton mass |
1.67262192369×10M27 kilograms |
|
mn
|
neutron mass |
1.67492749804×10M27 kilograms |
|
mm
|
muon mass |
1.883531627×10M28 kilograms |
|
G |
universal gravitation |
6.6743×10M11 meters3 per kilogram per seconds2 |
|
F |
Faraday constant |
96485.33212 Coulombs per mole |
|
a0
|
Bohr radius |
5.29177210903×10M11 meters |
|
re
|
classical electron radius |
2.8179403262×10M15 meters |
|
k |
Boltzmann constant |
1.380649×10M23 Joules per Kelvin |
|
e |
electron charge |
1.602176634×10M19 Coulombs |
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u |
atomic mass unit |
1.6605390666×10M27 kilograms |
|
atm |
standard atmosphere |
101325 Pascals |
|
H0 |
permittivity of vacuum |
8.8541878128×10M12 Farads per meter |
|
m0 |
permeability of vacuum |
1.25663706212×10M6 Newtons per ampere2 |
|
Cc |
Coulomb’s constant |
8.987551792261×109 meters per Farad |