Spatially extended systems yield complex patterns arising from the coupled
dynamics of its different regions. In this paper we introduce a matrix comp
utational operator, F-A, for the characterization of asymmetric amplitude f
ragmentation in extended systems. For a given matrix of amplitudes this ope
ration results in an asymmetric-triangulation field composed by L points an
d I straight lines. The parameter (I - L)/L is a new quantitative measure o
f the local complexity defined in terms of the asymmetry in the gradient fi
eld of the amplitudes. This asymmetric fragmentation parameter is a measure
of the degree of structural complexity and characterizes the localized reg
ions of a spatially extended system and symmetry breaking along the evoluti
on of the system. For the case of a random field, in the real domain, which
has total asymmetry, this asymmetric fragmentation parameter is expected t
o have the highest value and this is used to normalize the values for the o
ther cases. Here, we present a detailed description of the operator F-A and
some of the fundamental conjectures that arises from its application in sp
atio-temporal asymmetric patterns.