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Seq.sum<^T> Function (F#)

Den Delimarsky|Last Updated: 8/18/2017
2 Contributors

Returns the sum of the elements in the sequence.

Namespace/Module Path: Microsoft.FSharp.Collections.Seq

Assembly: FSharp.Core (in FSharp.Core.dll)


// Signature:
Seq.sum : seq<^T> -> ^T (requires ^T with static member (+) and ^T with static member Zero)

// Usage:
Seq.sum source


source Type: seq<^T>

The input sequence.

Return Value

The sum of all elements of the sequence.


May throw an OverflowException due to arithmetic overflows.


The elements are summed using the checked + operator and Zero property associated with the summed type.

This function is named Sum in compiled assemblies. If you are accessing the function from a language other than F#, or through reflection, use this name.


Windows 8, Windows 7, Windows Server 2012, Windows Server 2008 R2

Version Information

F# Core Library Versions

Supported in: 2.0, 4.0, Portable

See Also

Collections.Seq Module (F#)

Microsoft.FSharp.Collections Namespace (F#)

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