An analog input signal is digitized by first sampling the analog signal to produce a first sequence of analog samples representing successive magnitudes and de-interleaving the first sequence into a set of two or more second sequences. The said catalyst component are capable to give polymers with high xylene insolubility, high stereoblock content and broad MWD suitable for making the polymers usable in the BOPP sector. Preferably the first oxide pattern is precisely and uniformly spaced to maximize quantum wire numbers per unit area. Thus, an area-efficient, cross-current-reduced and reliable calculating unit is obtained, which may additionally be clocked at high speed, as a transition form a preparation mode to a data mode takes place without time-consuming discharge processes. In certain embodiments, the system uses a hexagonal pattern where the grid may be represented by a multiplicity of nested hexagonal patterns.