см. тж. для обозначения
• The following designations are used: α = l/a , β = a/t and γ= c/a .
• Adjacent lines of the six-phase system may be determined by the Roman-numeral labelling of the vector diagram.
• Notation ( or Nomenclature ) : C = specific heat capacity, G = rate of heat generation per unit volume, ...
• The notation P ( x, y) denotes a point P with coordinates ( x, y ).
• Symbols : θ = temperature, θ 0 = undisturbed ground temperature.
• The excitation of a three-axis magnetic dipole source is most conveniently described in vector notation .