Iterators.Combinations Method

Definition

Namespace: Extreme.Mathematics
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23

Overload List

Combinations(Int32, Int32)	Enumerates the indexes of all combinations of the specified length from a set of the specified size.
Combinations(Int32, Int32, Int32[])	Enumerates the indexes of all combinations of the specified length from a set of the specified size.
Combinations<T>(IList<T>, Int32)	Enumerates all combinations of the specified length from a set of items.

Combinations<T>(IList<T>, Int32)

Enumerates all combinations of the specified length from a set of items.

public static IEnumerable<T[]> Combinations<T>(
	IList<T> items,
	int length
)

Visual Basic

Public Shared Function Combinations(Of T) ( 
	items As IList(Of T),
	length As Integer
) As IEnumerable(Of T())

C++/CLI

public:
generic<typename T>
static IEnumerable<array<T>^>^ Combinations(
	IList<T>^ items, 
	int length
)

static member Combinations : 
        items : IList<'T> * 
        length : int -> IEnumerable<'T[]>

Parameters

items IList<T>: A list of items to draw combinations from.
length Int32: The length of the combinations.

Type Parameters

T: The type of the items.

Return Value

IEnumerable<T[]>
A sequence of arrays that contain all combinations of length elements from items.

Exceptions

ArgumentNullException	items is null.
ArgumentOutOfRangeException	length is less than zero.

Combinations(Int32, Int32)

Enumerates the indexes of all combinations of the specified length from a set of the specified size.

public static IEnumerable<int[]> Combinations(
	int count,
	int length
)

Visual Basic

Public Shared Function Combinations ( 
	count As Integer,
	length As Integer
) As IEnumerable(Of Integer())

C++/CLI

public:
static IEnumerable<array<int>^>^ Combinations(
	int count, 
	int length
)

static member Combinations : 
        count : int * 
        length : int -> IEnumerable<int[]>

Parameters

count Int32: The size of the set to draw combinations from.
length Int32: The length of the combinations.

Return Value

IEnumerable<Int32[]>
A sequence of integer arrays that contain the indexes of all combinations of length elements from a set of size count.

Exceptions

ArgumentOutOfRangeException

length is less than zero.

Combinations(Int32, Int32, Int32[])

Enumerates the indexes of all combinations of the specified length from a set of the specified size.

public static IEnumerable<int[]> Combinations(
	int count,
	int length,
	int[] result
)

Visual Basic

Public Shared Function Combinations ( 
	count As Integer,
	length As Integer,
	result As Integer()
) As IEnumerable(Of Integer())

C++/CLI

public:
static IEnumerable<array<int>^>^ Combinations(
	int count, 
	int length, 
	array<int>^ result
)

static member Combinations : 
        count : int * 
        length : int * 
        result : int[] -> IEnumerable<int[]>

Parameters

count Int32: The size of the set to draw combinations from.
length Int32: The length of the combinations.
result Int32[]: An array that is to hold the result.

Return Value

IEnumerable<Int32[]>
A sequence of integer arrays that contain the indexes of all combinations of length elements from a set of size count.

Remarks

The indexes are returned each time in the same array, result. Its elements should not be modified. If they are modified, the results are unpredictable.

Exceptions

ArgumentOutOfRangeException

length is less than zero.

Iterators.Combinations Method

Definition

Overload List

Combinations<T>(IList<T>, Int32)

Parameters

Type Parameters

Return Value

Exceptions

Combinations(Int32, Int32)

Parameters

Return Value

Exceptions

Combinations(Int32, Int32, Int32[])

Parameters

Return Value

Remarks

Exceptions

See Also

Reference