Quipu 1.0.0

.NET 6.0 This package targets .NET 6.0. The package is compatible with this framework or higher. 
dotnet add package Quipu --version 1.0.0
                    


                    

                
NuGet\Install-Package Quipu -Version 1.0.0
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="Quipu" Version="1.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Quipu" Version="1.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Quipu" />
                    


                            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 Quipu --version 1.0.0
                    


                    

                
#r "nuget: Quipu, 1.0.0"
#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 Quipu@1.0.0
#: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=Quipu&version=1.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Quipu&version=1.0.0
                    


                            Install as a Cake Tool

Quipu

Quipu is a dotnet implementation of the Nelder–Mead method. It is a numerical solver used to find the minimum or maximum of a function. It is particularly useful for nonlinear optimization problems for which derivatives may not be known.

NuGet Version GitHub Actions Workflow Status F#

Example usage

The solver can be used from F# and C#, with similar APIs.

Let's use Quipu to find the minimum of f(x,y) = (x-1)^2 + (y-2)^2 + 42.

This function has a unique global minimum, for x=1,y=2.

Basic usage, F# pipeline

#r "nuget: Quipu, 1.0.0"
open Quipu

let f (x, y) = pown (x - 1.0) 2 + pown (y - 2.0) 2 + 42.0

let solverResult =
    NelderMead.objective f
    |> NelderMead.minimize

if solverResult.HasSolution
then
    let solution = solverResult.Solution
    printfn $"Solution: {solution.Status}"
    let candidate = solution.Candidate
    let args = candidate.Arguments
    let value = candidate.Value
    printfn $"f(%.3f{args[0]}, %.3f{args[1]}) = %.3f{value}"

Solution: Optimal
f(1.000, 2.000) = 42.000

Basic usage, C# fluent interface

#r "nuget: Quipu, 1.0.0"
using Quipu.CSharp;
using System;

Func<Double,Double,Double> f =
    (x, y) => Math.Pow(x - 1.0, 2) + Math.Pow(y - 2.0, 2) + 42.0;

var solverResult =
    NelderMead
        .Objective(f)
        .Minimize();

if (solverResult.HasSolution)
{
    var solution = solverResult.Solution;
    Console.WriteLine($"Solution: {solution.Status}");
    var candidate = solution.Candidate;
    var args = candidate.Arguments;
    var value = candidate.Value;
    Console.WriteLine($"f({args[0]:N3}, {args[1]:N3}) = {value:N3}");
}

Solution: Optimal
f(1.000, 2.000) = 42.000

Advanced usage

The solver provides more fine grained control if needed, see the test suite for more examples:

open Quipu

let f (x, y) = pown (x - 1.0) 2 + pown (y - 2.0) 2 + 42.0

let tolerance = 0.000_0001

let solverResult =
    NelderMead.objective f
    |> NelderMead.withTolerance 0.000_0001
    |> NelderMead.startFrom (Start.around [ 100.0; 100.0])
    |> NelderMead.minimize
Product Compatible and additional computed target framework versions.
.NET net6.0 is compatible.  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 was computed.  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 was computed.  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. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
1.0.0 151 7/16/2025
0.7.0 150 7/10/2025
0.6.0 83 7/4/2025
0.5.2 169 12/26/2024
0.5.1 128 12/23/2024
0.5.0 147 12/22/2024
0.4.0 128 12/14/2024
0.3.1 128 12/9/2024
0.3.0 172 12/8/2024
0.2.3 147 5/1/2024
0.2.2 185 4/19/2024
0.2.1 263 12/5/2023
0.2.0 189 11/8/2023
0.1.1 143 12/1/2023
0.1.0 236 4/16/2023