This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
 Discrete & Integer Data Integrated into the Mathematica system are powerful functions for analyzing large volumes of discrete and integer data—often conveniently specified using Mathematica's uniquely flexible pattern language. Differences — successive differences Accumulate — cumulative sums      Union — unique elements in a single list or between lists Tally — tally distinct elements, listing them with their multiplicities BinCounts, BinLists — count, list elements in a sequence of bins      Cases — list elements matching a pattern Count — count elements matching a pattern Position — positions of elements list/.rule — replace elements according to a rule Converting to Other Forms ArrayRules — convert to position→value sparse array form FromDigits — convert to numbers, polynomials, etc. ToString — convert to a string      TUTORIALS Rearranging Lists Finding Expressions That Match a Pattern Basic Statistics MORE ABOUT Numerical Data Discrete Mathematics Number Recognition