Observable.Sum Method (IObservable<Double>)

Computes the sum of a sequence of Double values.

Namespace:  System.Reactive.Linq
Assembly:  System.Reactive (in System.Reactive.dll)

public static IObservable<double> Sum(
	this IObservable<double> source


Type: System.IObservable<Double>
A sequence of Double values to calculate the sum of.

Return Value

Type: System.IObservable<Double>
The sum of a sequence of Double values.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IObservable<Double>. When you use instance method syntax to call this method, omit the first parameter. For more information, see https://msdn.microsoft.com/en-us/library/bb384936(v=vs.103) or https://msdn.microsoft.com/en-us/library/bb383977(v=vs.103).