License¶
The ITDS Differential Equations package is distributed under a proprietary commercial license.
Differential Equations Commercial License Agreement¶
Version 1.1
Effective Date: 2026-01-01
This Differential Equations Commercial License Agreement (“Agreement”) is a legal agreement between the Licensor and the Licensee for use of the Differential Equations software library (the “Software”).
By installing, copying, accessing, or otherwise using the Software, Licensee agrees to be bound by this Agreement.
1. Definitions¶
“Licensor” means the copyright owner and distributor of the Software.
“Licensee” means the individual or legal entity obtaining rights under this Agreement.
“Software” means the ITDS Differential Equations library, including source code, binaries, documentation, examples, and updates provided under this Agreement.
“Authorized Use” means internal use by Licensee for development, testing, and operation of Licensee’s own products and services.
“Deliverables” means the materials provided by Licensor under the applicable order form, which may include source code, unit tests, integration tests, and CI/CD pipeline configuration files.
2. License Type and Commercial Models¶
This is a proprietary commercial license offered under one of the following commercial models, as specified in the signed order form:
One-time fee model: perpetual use rights for the purchased version and scope.
Annual royalty model: recurring yearly fee or royalty for continued licensed use, support, and any rights specified in the order form.
If no model is specified in writing, the default is the one-time fee model.
3. License Grant¶
Subject to Licensee’s compliance with this Agreement and payment of any applicable fees, Licensor grants Licensee a limited, non-exclusive, non-transferable license to:
install and use the Software for Authorized Use;
modify the Software source code for Authorized Use;
create derivative works for Authorized Use;
integrate the Software into Licensee’s own applications and services; and
distribute Licensee’s compiled or bundled applications that include the Software only as an embedded component.
No ownership rights are transferred. The Software is licensed, not sold.
3A. Included Deliverables and Pipeline Setup Services¶
Unless otherwise stated in the applicable order form, Licensor may provide Deliverables that include source code, unit tests, integration tests, and CI/CD pipeline configuration files.
At Licensee’s request, Licensor may also provide professional services to set up or assist with GitHub pipeline configuration in Licensee-controlled repositories, for example GitHub Actions CI/CD workflows. Any such implementation services are governed by the order form or statement of work, including scope, fees, timeline, and access requirements.
4. Redistribution Boundary¶
Licensee may distribute its own end products that embed the Software only in compiled or bundled form.
Licensee may not distribute or provide the Software itself, whether source or binary, as a standalone library, toolkit, SDK, or package.
5. Restrictions¶
Licensee must not, and must not permit any third party to:
resell, redistribute, rehost, sublicense, rent, lease, lend, or otherwise commercially provide the Software as a standalone product or library;
publish, disclose, or make the source code available to third parties except as expressly authorized in writing by Licensor;
remove or alter copyright, trademark, or proprietary notices;
use the Software to create a competing differential equations library product offered for resale or relicensing; and
transfer this license to another person or entity without Licensor’s prior written consent.
For clarity, this Agreement forbids resale of the Software itself.
6. Intellectual Property¶
All rights, title, and interest in and to the Software, including all intellectual property rights, remain with Licensor and its licensors.
Licensee owns its modifications and derivative works, but such ownership does not grant any right to distribute the original Software outside the permissions of this Agreement.
7. Fees, Royalty, and Audit¶
Licensee must pay fees according to the applicable order form or invoice.
Professional services, including CI/CD setup and onboarding support, are billed as stated in the applicable order form or statement of work, unless explicitly included in the purchased license package.
For annual royalty model agreements, Licensee must pay the yearly royalty by the due date stated in the order form. Failure to pay may suspend or terminate licensed rights as provided in that order form and this Agreement.
Upon reasonable notice, Licensor may request records sufficient to verify Licensee’s compliance with seat, deployment, and redistribution limits.
8. Confidentiality¶
Any non-public technical, business, or licensing information provided by Licensor is confidential and must not be disclosed except as required by law.
9. Warranty Disclaimer¶
THE SOFTWARE IS PROVIDED “AS IS” AND “AS AVAILABLE,” WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
10. Limitation of Liability¶
TO THE MAXIMUM EXTENT PERMITTED BY LAW, LICENSOR WILL NOT BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES, OR FOR LOSS OF PROFITS, DATA, OR BUSINESS INTERRUPTION.
LICENSOR’S TOTAL LIABILITY ARISING OUT OF OR RELATED TO THIS AGREEMENT WILL NOT EXCEED THE AMOUNT PAID BY LICENSEE FOR THE SOFTWARE IN THE TWELVE (12) MONTHS PRECEDING THE CLAIM.
11. Term and Termination¶
This Agreement remains in effect until terminated.
Licensor may terminate this Agreement immediately if Licensee breaches any term, including the no-resale restriction.
Upon termination, Licensee must cease all use of the Software and destroy all copies in its possession or control, except where retention is required by law.
12. Export and Compliance¶
Licensee is responsible for compliance with all applicable laws and regulations, including export controls and sanctions laws.
13. Governing Law¶
This Agreement is governed by the laws of the jurisdiction specified by Licensor in the applicable commercial order form. If no jurisdiction is specified, the governing law and venue will be the Licensor’s principal place of business.
14. Entire Agreement¶
This Agreement and any related order form constitute the entire agreement regarding the Software and supersede prior or contemporaneous communications on this subject.
15. Contact¶
For commercial licensing, resale exceptions, OEM terms, or sublicensing inquiries, contact Licensor directly.