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