FunctionMath.Sum Method

Definition

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

Sum(Func<Int32, Double>, Int32, Int32)	Computes the sum of an expression evaluated over the specified range.
Sum<T>(IEnumerable<T>, Func<T, Double>)	Computes the sum of an expression evaluated for each member of a collection.

Computes the sum of an expression evaluated for each member of a collection.

public static double Sum<T>(
	IEnumerable<T> collection,
	Func<T, double> terms
)

Visual Basic

Public Shared Function Sum(Of T) ( 
	collection As IEnumerable(Of T),
	terms As Func(Of T, Double)
) As Double

C++/CLI

public:
generic<typename T>
static double Sum(
	IEnumerable<T>^ collection, 
	Func<T, double>^ terms
)

static member Sum : 
        collection : IEnumerable<'T> * 
        terms : Func<'T, float> -> float

collection IEnumerable<T>: An enumerable collection of elements of type T.
terms Func<T, Double>: A delegate that returns the value of the specified term.

Double
The sum of terms evaluated for each element of collection.

terms is null.

Computes the sum of an expression evaluated over the specified range.

public static double Sum(
	Func<int, double> terms,
	int lowerBound,
	int upperBound
)

Visual Basic

Public Shared Function Sum ( 
	terms As Func(Of Integer, Double),
	lowerBound As Integer,
	upperBound As Integer
) As Double

C++/CLI

public:
static double Sum(
	Func<int, double>^ terms, 
	int lowerBound, 
	int upperBound
)

static member Sum : 
        terms : Func<int, float> * 
        lowerBound : int * 
        upperBound : int -> float

terms Func<Int32, Double>: A delegate that returns the value of the specified term.
lowerBound Int32: The (inclusive) lower bound of the summation.
upperBound Int32: The (exclusive) upper bound of the summation.

Double
The sum of terms evaluated at all integers from lowerBound up to but not including upperBound.

terms is null.