gives the total number of indivisible subexpressions in expr.


  • LeafCount gives a measure of the total "size" of an expression.
  • LeafCount counts the number of subexpressions in expr that correspond to "leaves" on the expression tree.
  • LeafCount is based on FullForm representation of expressions.
  • Numbers with heads Rational and Complex are treated as composite objects, just as in FullForm.
Introduced in 1988
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