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Observable::Sum Method (IObservable<Nullable<Single>>)

Computes the sum of a sequence of nullable Float values.

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

[ExtensionAttribute]
public:
static IObservable<Nullable<float>>^ Sum(
	IObservable<Nullable<float>>^ source
)

Parameters

source
Type: System::IObservable<Nullable<Single>>
A sequence of nullable Float values to calculate the sum of.

Return Value

Type: System::IObservable<Nullable<Single>>
The sum of a sequence of nullable Float values.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IObservable<Nullable<Single>>. 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).aspx or https://msdn.microsoft.com/en-us/library/bb383977(v=vs.103).aspx.
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