Averaged

W,P,S(p) are shown in Fig.3. They are obtained by the upper applet for
L = 640 and 100 averagings.
W(p) is the probabilities of appearance of spanning cluster.
P(p) is the probability that an occupied site belongs to the
spanning cluster
P(p) = (number of sites in the spanning cluster) /
(total number of occudied sites)
The quantity discribes the "density" of the spanning cluster. Because sn is the part of occupied sites in clusters of size
_{s}s, then the mean cluster size S(p) is
S(p) = ∑ ,
_{s}
s^{2}n_{s} / ∑_{s}
sn_{s} = ∑_{i}
s_{i}^{2} / ∑_{i} s_{i} |

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