7 Appendix: Quantity- / Unit Symbols

and Important Constants

Tab. 7.1: Important natural constants, quantity and unit symbols.

Name of Quantity

Symbol

Domain / Value

Unit

Unitsymbol

chapter 2

Information

I

ℝ

Shannon

sh

Probability

p

0, . . . , 1

Data volume

D

ℝ

Bit or Byte

b or B

Word width

W

ℕ

Data rate

C

ℝ

Bit

second

bit/s

Symbol duration

Ts

ℝ

second

s

Symbol rate

fs

ℝ

Baud

Bd

Power

P

ℝ

Watt

W

Potential

u, U

ℝ

Volt

V

Current

i, I

ℝ

Ampere

A

Resistance

R

ℝ

Ohm

Ω

Time

t, t0, T

ℝ

second

s

Signal to noise ratio

SNR/dB

ℝ

Dezibel

dB

Bandwidth

B

ℝ

Hertz

Hz

real Fourier coefficients

ak, bk

ℝ

Period time

T

ℝ

second

s

Angular frequency

ω

ℝ

radiant

second

rad/s

Normal distribution

ℕ

ℝ

Variance

Var(X)

ℝ

Standard deviation

σ(X)

ℝ

Mean / expectation value

μ(X), E(X)

ℝ

Energy

E

ℝ

Integal kernel

K

Variable in complex do-

main

ξ

ℝ

Laplace variable

p

ℂ

Real part of Laplace vari-

able

σ

ℝ

chapter 3

Avogadro number

NA

6.022 ⋅10²³

Mol⁻¹

mol⁻¹

Elementary charge

e

1.602 ⋅10⁻¹⁹

Coulomb

C

https://doi.org/10.1515/9783110736298-007