System.Numerics.Tensors 10.0.0-preview.4.25258.110

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.

Showing the top 20 packages that depend on System.Numerics.Tensors.

Packages Downloads
Microsoft.SemanticKernel.Core
Semantic Kernel core orchestration, runtime and functions. This package is automatically installed by 'Microsoft.SemanticKernel' package with other useful packages. Install this package manually only if you are selecting individual Semantic Kernel components.
1

https://go.microsoft.com/fwlink/?LinkID=799421

.NET Framework 4.6.2

.NET 8.0

  • No dependencies.

.NET 9.0

  • No dependencies.

.NET 10.0

  • No dependencies.

.NET Standard 2.0

Version Downloads Last updated
10.0.0-preview.4.25258.110 1 05/14/2025
10.0.0-preview.3.25171.5 1 04/27/2025
10.0.0-preview.2.25163.2 1 04/27/2025
10.0.0-preview.1.25080.5 1 04/27/2025
9.0.5 1 05/14/2025
9.0.4 1 04/27/2025
9.0.3 1 04/27/2025
9.0.2 1 04/27/2025
9.0.1 1 04/27/2025
9.0.0 1 04/27/2025
9.0.0-rc.2.24473.5 1 04/27/2025
9.0.0-rc.1.24431.7 1 04/27/2025
9.0.0-preview.7.24405.7 1 04/27/2025
9.0.0-preview.6.24327.7 1 05/02/2025
9.0.0-preview.5.24306.7 1 04/27/2025
9.0.0-preview.4.24266.19 1 04/27/2025
9.0.0-preview.3.24172.9 1 04/27/2025
9.0.0-preview.2.24128.5 1 04/27/2025
9.0.0-preview.1.24080.9 1 04/27/2025
8.0.0 2 04/08/2025
8.0.0-rc.2.23479.6 1 04/27/2025
8.0.0-rc.1.23419.4 1 04/27/2025
8.0.0-preview.7.23375.6 1 04/27/2025
8.0.0-preview.6.23329.7 1 04/27/2025
8.0.0-preview.5.23280.8 1 04/27/2025
8.0.0-preview.4.23259.5 1 04/27/2025
8.0.0-preview.3.23174.8 1 04/27/2025
8.0.0-preview.2.23128.3 1 04/27/2025
8.0.0-preview.1.23110.8 1 04/27/2025
7.0.0-rtm.22518.5 1 05/14/2025
7.0.0-rc.2.22472.3 1 04/27/2025
7.0.0-rc.1.22426.10 1 04/27/2025
7.0.0-preview.7.22375.6 1 04/27/2025
7.0.0-preview.6.22324.4 1 04/27/2025
7.0.0-preview.5.22301.12 1 04/27/2025
7.0.0-preview.4.22229.4 1 04/27/2025
7.0.0-preview.3.22175.4 1 04/27/2025
7.0.0-preview.2.22152.2 1 04/27/2025
7.0.0-preview.1.22076.8 1 04/27/2025
6.0.0-rtm.21522.10 1 04/27/2025
6.0.0-rc.2.21480.5 1 04/27/2025
6.0.0-rc.1.21451.13 1 04/27/2025
6.0.0-preview.7.21377.19 1 04/27/2025
6.0.0-preview.6.21352.12 1 04/27/2025
6.0.0-preview.5.21301.5 1 04/27/2025
6.0.0-preview.4.21253.7 0 05/24/2021
6.0.0-preview.3.21201.4 1 04/27/2025
6.0.0-preview.2.21154.6 1 04/27/2025
6.0.0-preview.1.21102.12 1 04/27/2025
5.0.0-preview.8.20407.11 1 04/27/2025
5.0.0-preview.7.20364.11 1 04/27/2025
5.0.0-preview.6.20305.6 1 04/27/2025
5.0.0-preview.5.20278.1 1 04/27/2025
5.0.0-preview.4.20251.6 1 04/27/2025
5.0.0-preview.3.20214.6 0 04/23/2020
5.0.0-preview.2.20160.6 1 04/27/2025
5.0.0-preview.1.20120.5 1 04/27/2025
0.2.0-preview7.19362.9 1 04/27/2025
0.2.0-preview6.19303.8 1 04/27/2025
0.2.0-preview6.19264.9 1 04/27/2025
0.2.0-preview5.19224.8 1 04/27/2025
0.2.0-preview4.19212.13 1 04/27/2025
0.2.0-preview3.19128.7 1 04/27/2025
0.2.0-preview.19073.11 1 04/27/2025
0.2.0-preview.18571.3 1 04/27/2025
0.1.0 1 04/27/2025