System.Numerics.Tensors 9.0.15

Prefix Reserved
.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. .NET Framework 4.6.2 This package targets .NET Framework 4.6.2. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package System.Numerics.Tensors --version 9.0.15
                    


                    

                
NuGet\Install-Package System.Numerics.Tensors -Version 9.0.15
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="System.Numerics.Tensors" Version="9.0.15" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="System.Numerics.Tensors" Version="9.0.15" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="System.Numerics.Tensors" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add System.Numerics.Tensors --version 9.0.15
                    


                    

                
#r "nuget: System.Numerics.Tensors, 9.0.15"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package System.Numerics.Tensors@9.0.15
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=System.Numerics.Tensors&version=9.0.15
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=System.Numerics.Tensors&version=9.0.15
                    


                            Install as a Cake Tool

About

Provides methods for performing mathematical operations over tensors represented as spans. These methods are accelerated to use SIMD (Single instruction, multiple data) operations supported by the CPU where available.

Key Features

  • Numerical operations on tensors represented as ReadOnlySpan<float>
  • Element-wise arithmetic: Add, Subtract, Multiply, Divide, Exp, Log, Cosh, Tanh, etc.
  • Tensor arithmetic: CosineSimilarity, Distance, Dot, Normalize, Softmax, Sigmoid, etc.

How to Use

using System.Numerics.Tensors;

var movies = new[] {
    new { Title="The Lion King", Embedding= new [] { 0.10022575f, -0.23998135f } },
    new { Title="Inception", Embedding= new [] { 0.10327095f, 0.2563685f } },
    new { Title="Toy Story", Embedding= new [] { 0.095857024f, -0.201278f } },
    new { Title="Pulp Function", Embedding= new [] { 0.106827796f, 0.21676421f } },
    new { Title="Shrek", Embedding= new [] { 0.09568083f, -0.21177962f } }
};
var queryEmbedding = new[] { 0.12217915f, -0.034832448f };

var top3MoviesTensorPrimitives =
    movies
        .Select(movie =>
            (
                movie.Title,
                Similarity: TensorPrimitives.CosineSimilarity(queryEmbedding, movie.Embedding)
            ))
        .OrderByDescending(movies => movies.Similarity)
        .Take(3);

foreach (var movie in top3MoviesTensorPrimitives)
{
    Console.WriteLine(movie);
}

Main Types

The main types provided by this library are:

  • System.Numerics.Tensors.TensorPrimitives

Additional Documentation

Feedback & Contributing

System.Numerics.Tensors is released as open source under the MIT license. Bug reports and contributions are welcome at the GitHub repository.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 is compatible.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (132)

Showing the top 5 NuGet packages that depend on System.Numerics.Tensors:

Package Downloads
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Microsoft.ML.CpuMath

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Microsoft.Extensions.AI

Utilities for working with generative AI components.
Microsoft.ML.OnnxRuntime.Managed

This package contains ONNX Runtime for .Net platforms

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Version Downloads Last Updated
11.0.0-preview.3.26207.106 173 4/14/2026
11.0.0-preview.2.26159.112 428 3/10/2026
11.0.0-preview.1.26104.118 708 2/10/2026
10.0.7 22,388 4/21/2026
10.0.6 138,695 4/14/2026
10.0.5 67,701 3/12/2026
10.0.4 811,957 3/10/2026
10.0.3 1,127,563 2/10/2026
10.0.2 1,520,422 1/13/2026
10.0.1 561,224 12/9/2025
10.0.0 977,693 11/11/2025
10.0.0-rc.2.25502.107 3,135 10/14/2025
10.0.0-rc.1.25451.107 14,459 9/9/2025
9.0.15 1,410 4/14/2026
9.0.14 3,124 3/10/2026
9.0.13 1,442 2/10/2026
9.0.12 6,001 1/13/2026
9.0.11 21,240 11/11/2025
9.0.10 1,066,423 10/14/2025
9.0.9 276,070 9/9/2025
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