Definition: For math objects gives linear measure; for list objects gives number of elements.
Length[ <Vector> ]
Length[ <Point> ]
Length[<Function>, <Start x-Value>, <End x-Value> ]
Length[<Function>, <Start Point>, <End Point> ]
Length[<Curve>, <Start x-Value>, <End x-Value> ]
Length[<Curve>, <Start Point>, <End Point> ]
Length[ <List> ]

List Command - Length

Length[List]: Yields the length of the list, which is the number of list elements.
See also:
  • CountIf which counts the number of elements in a list satisfying a condition.
  • other List commands.

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Page last modified on December 06, 2009, at 11:28 AM