ALEA::RANDWALK1
Arguments: nc binf bsup long pamax [generic-function]
Random walk, where <pamax> indicates the maximal step of the random walk,
<nc> the initial value,<long> the length of the sequence and <binf> and <bsup>
<nc> the initial value,<long> the length of the sequence and <binf> and <bsup>
the inferior boundary and the superior boundary. Warning: boudaries are considered as elastic.
