Length

The number of elements in the collection.

Wolfram LanguageLength✓↗

Length(collection)the number of elements in the collection.

SageMathlen(collection)SymPylen(collection)

Domain: Collections

Details

• Works on any collection head, not just — e.g. .
• Additive over concatenation: . See Join.
• compute-engine's Length requires an actual collection.
• See Count to count occurrences of a specific value instead of every element.

Examples

See also: Count