Downloads of v


Last Update:

29 Jul 2022

Package Maintainer(s):

Software Author(s):

  • Nelson numerical software


nelson development science education matrix


This is not the latest version of nelson available.

  • 1
  • 2
  • 3 | Updated: 29 Jul 2022



Downloads of v


Software Author(s):

  • Nelson numerical software

  • 1
  • 2
  • 3

This is not the latest version of nelson available.

  • 1
  • 2
  • 3

Some Checks Have Failed or Are Not Yet Complete

Not All Tests Have Passed

Validation Testing Passed

Verification Testing Passed


Scan Testing Resulted in Flagged as a Note:

At least one file within this package has greater than 0 detections, but less than 5

Learn More

Deployment Method: Individual Install, Upgrade, & Uninstall

To install nelson, run the following command from the command line or from PowerShell:


To upgrade nelson, run the following command from the command line or from PowerShell:


To uninstall nelson, run the following command from the command line or from PowerShell:


Deployment Method:

📝 NOTE: This applies to both open source and commercial editions of Chocolatey.

1. Enter Your Internal Repository Url

(this should look similar to

2. Setup Your Environment

1. Ensure you are set for organizational deployment

Please see the organizational deployment guide

2. Get the package into your environment

  • Open Source or Commercial:
    • Proxy Repository - Create a proxy nuget repository on Nexus, Artifactory Pro, or a proxy Chocolatey repository on ProGet. Point your upstream to Packages cache on first access automatically. Make sure your choco clients are using your proxy repository as a source and NOT the default community repository. See source command for more information.
    • You can also just download the package and push it to a repository Download

3. Copy Your Script

choco upgrade nelson -y --source="'INTERNAL REPO URL'" --version="''" [other options]

See options you can pass to upgrade.

See best practices for scripting.

Add this to a PowerShell script or use a Batch script with tools and in places where you are calling directly to Chocolatey. If you are integrating, keep in mind enhanced exit codes.

If you do use a PowerShell script, use the following to ensure bad exit codes are shown as failures:

choco upgrade nelson -y --source="'INTERNAL REPO URL'" --version="''" 

Write-Verbose "Exit code was $exitCode"
$validExitCodes = @(0, 1605, 1614, 1641, 3010)
if ($validExitCodes -contains $exitCode) {
  Exit 0

Exit $exitCode

- name: Install nelson
    name: nelson
    version: ''
    state: present

See docs at

chocolatey_package 'nelson' do
  action    :install
  source   'INTERNAL REPO URL'
  version  ''

See docs at

cChocoPackageInstaller nelson
    Name     = "nelson"
    Version  = ""
    Source   = "INTERNAL REPO URL"

Requires cChoco DSC Resource. See docs at

package { 'nelson':
  ensure   => '',
  provider => 'chocolatey',
  source   => 'INTERNAL REPO URL',

Requires Puppet Chocolatey Provider module. See docs at

4. If applicable - Chocolatey configuration/installation

See infrastructure management matrix for Chocolatey configuration elements and examples.

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This package was approved as a trusted package on 29 Jul 2022.


Nelson is an array programming language providing a powerful open computing environment for
engineering and scientific applications using modern C/C++ libraries (Boost, Eigen, …)
and others state of art numerical libraries.

It has sophisticated data structures (including cell, struct, linear systems, …),
an interpreter and a high level programming language.

Nelson has been developed to be an open/modular system where an user can define
these own data types and operations on these data types by using overload.

Nelson environment


  • Types managed by Nelson:

    • double and double complex: scalar, vector, matrix 2D, N dimensions array, sparse matrix.
    • single and single complex: scalar, vector, matrix 2D, N dimensions array, sparse matrix.
    • logical: scalar, vector, matrix 2D, N dimensions array, sparse matrix.
    • character array (UNICODE supported).
    • string array (UNICODE supported).
    • integers 8, 16, 32, 64 signed and unsigned: scalar, vector, matrix 2D, N dimensions array.
    • handle objects.
  • OpenMP and SIMD extensions used.

  • Fast Fourrier Transformation functions based on FFTW and MKL wrapper.

  • SLICOT (Subroutine Library in Systems and Control Theory) interfaces (optional).

  • Message Passing Interface (MPI): functions for parallel computing.

  • JSON decode/encode data support.

  • HDF5 high-level functions I/O,

  • HDF5 used as default data file format (.nh5) load/save workspace,

  • MAT-file compatible load/save workspace,

  • Foreign Function Interface C/Fortran.

  • Interfacing C/C++ or Fortran with Nelson (build and load external code on the fly).

  • MEX C API compatibility.

  • Nelson Engine API for C (compatible with MEX Engine). Call Nelson from your C code as engine.

  • RESTful API web service.

  • Inter-process communication between Nelson's process.

  • The QML engine enables nelson programs to display and manipulate graphical content using Qt's QML framework.

  • Component Object Model (COM) client interface: binary-interface standard for software components on Windows.

  • Write/Read xlsx files on Windows using COM.

  • Embedded Nelson code editor.

  • Help engine:

    Generate help files using Nelson dedicated functions.
    View your generated help files as html, markdown, pdf, gitbook or directly in Nelson help viewer.

  • Tests engine:

    Validate your algorithm using Nelson dedicated functions.
    Export the test results under the xUnit reports format.

  • Profiling and Code coverage tools for Nelson's language:

    Nelson has a built-in profiler that is very useful to profile your code and find out what script or function is taking the most time.

  • Nelson cloud:
    Instant access to Nelson anywhere from an web browser.

  • Module skeleton to extend Nelson available here:

  • Nelson Modules Manager (nmm) : package manager for Nelson

Allan CORNET ([email protected])

$packageName = 'nelson'
$installerType = 'exe'
$url = ''
$checksum = '3da0ba2ca8e1586f47a2663b92dfaf13aa8d174c7bbbdcc08dfde85d28a04de0'
$checksumType = 'sha256'
$url64 = ''
$checksum64 = '6b672149622611298b025e88bccb857ec99c0d0bf7c3b6c3945fec0f43b2f4f5'
$checksumType64 = 'sha256'
$validExitCodes = @(0)

Install-ChocolateyPackage -PackageName "$packageName" `
                          -FileType "$installerType" `
                          -SilentArgs "$silentArgs" `
                          -Url "$url" `
                          -Url64bit "$url64" `
                          -ValidExitCodes $validExitCodes `
                          -Checksum "$checksum" `
                          -ChecksumType "$checksumType" `
                          -Checksum64 "$checksum64" `
                          -ChecksumType64 "$checksumType64"

Log in or click on link to see number of positives.

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.

Add to Builder Version Downloads Last Updated Status
nelson 13 Monday, October 31, 2022 Approved
nelson 20 Sunday, August 28, 2022 Approved
nelson 22 Friday, July 29, 2022 Approved
nelson 21 Tuesday, June 28, 2022 Approved
nelson 26 Thursday, May 26, 2022 Approved
nelson 23 Sunday, April 24, 2022 Approved
nelson 28 Sunday, April 3, 2022 Approved

This package has no dependencies.

Discussion for the nelson Package

Ground Rules:

  • This discussion is only about nelson and the nelson package. If you have feedback for Chocolatey, please contact the Google Group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
  • The maintainers of this Chocolatey Package will be notified about new comments that are posted to this Disqus thread, however, it is NOT a guarantee that you will get a response. If you do not hear back from the maintainers after posting a message below, please follow up by using the link on the left side of this page or follow this link to contact maintainers. If you still hear nothing back, please follow the package triage process.
  • Tell us what you love about the package or nelson, or tell us what needs improvement.
  • Share your experiences with the package, or extra configuration or gotchas that you've found.
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