Built-in constants
There are several mathematical and physical (CGSE/SI) constants which may
be included in MathMate expressions referenced by names (in
capital).
The names of these constants are reserved and cannot be used as variable
names. Be aware that capital E is used in Mathmate
for the mathematical e constant and small e is used in the
numbers, e.g. 1e-7.
You may either type a constant from the keyboard or use MathMate's
keypads and click the desired button. The name of the constant
will be inserted into the expression.
There is a choice of measurement units for physical constants in the
Settings menu. Either CGSE or SI units system can be chosen.
The following constants are available in MathMate expressions:
Mathematical constants
Constant name
|
Denotion
|
Value
|
p constant
|
PI
|
3.1415926535898
|
e constant
|
E
|
2.7182818284590
|
Euler g constant
|
GE
|
0.5772156649015
|
Physical constants
Constant name
|
Denotion
|
SI value
|
CGSE value
|
Light velocity
|
CL
|
2.997925e+8
|
2.997925e+10
|
Electron charge
|
EC
|
1.6021917e-19
|
4.80325e-10
|
Avogadro number
|
AN
|
6.022169e+23
|
6.022169e+23
|
Electron mass
|
EM
|
9.109558e-31
|
9.109558e-28
|
Proton mass
|
PM
|
1.672614e-27
|
1.672614e-24
|
Planck constant
|
HP
|
1.0545919e-34
|
1.0545910e-27
|
Fine structure constant
|
AL
|
7.297351e-3
|
7.297351e-3
|
Rydberg constant
|
RY
|
1.09737312e+7
|
1.09737312e+5
|
Boltzmann constant
|
KB
|
1.380622e-23
|
1.380622e-16
|
Gravity constant
|
GC
|
6.6732e-11
|
6.6732e-8
|
Bohr magneton
|
MU
|
9.274096e-27
|
9.274096e-21
|
Earth gravity constant
|
EG
|
9.80665
|
980.665
|