trotter library

Classes

Amalgams<T>

A pseudo-list of amalgams (permutations with repetition).

Combinations<T>

A pseudo-list of combinations.

Combinatorics<T>

The base class for the other classes in this library.

Compositions<T>

A pseudo-list of Compositions (combinations with repetition).

Compounds<T>

A pseudo-list of compounds.

Permutations<T>

A pseudo-list of permutations.

Storage<T>

A storage wrapper for a combinatorics instance.

Subsets<T>

A pseudolist of subsets.

Extensions

ListNumCandy on List<num>

Convenience methods to create combinatorics instances from lists of num types.

ListStringCandy on List<String>

Convenience methods to create combinatorics instances from lists of strings.

StringCandy on String

Functions

characters(String x) → List<String>

Splits string x into its characters.

factorial(int n) → BigInt

Calculates n!

nCr(int n, int r) → BigInt

Calculates the number of combinations of r items taken from n.

nPr(int n, int r) → BigInt

Calculates the number of permutations of r items taken from n.

string(List<String> x) → String

Creates a string from the characters in x.