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count

Method of Fbit.

Overloads​

NameDescription
count() -> integerReturns the sum of the occupation numbers (interpreted as integers) in the product state.
count(const List<integer> sites) -> integerReturns the sum of the occupation numbers of a subset of sites (interpreted as integers) in the product state.

count() -> integer​

Returns the sum of the occupation numbers (interpreted as integers) in the product state.

Example​

Fbit("10010001").count() // Returns 3

count(const List<integer> sites) -> integer​

Returns the sum of the occupation numbers of a subset of sites (interpreted as integers) in the product state.

Parameters​

  • sites: List of sites to count the number of fermions

Example​

Fbit("10010001").count([0,3,4]) // Returns 2