This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
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Order

Order[expr1, expr2]
gives 1 if expr1 is before expr2 in canonical order, and -1 if expr1 is after expr2 in canonical order. It gives 0 if expr1 is identical to expr2.
  • Order uses canonical order as described in the notes for Sort.
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