By accessing or using this Website, you agree to be bound by these Terms of Use.
By visiting this Website, you are bound to the following terms.
If you do not agree with these terms, then please do not use the Website.
Throughout this page,
Website refers to the ValsCalc website and all pages hosted at
valscalc.com.
Website content refers to
any text, figures, animations, videos, products, or any embedded elements contained within the Website.
Source code refers to HTML, CSS, JavaScript, LaTeX, and other software authored for this Website.
These terms are effective as of January 1, 2026.
1: Educational Purpose and Disclaimer
This Website is provided for educational purposes only.
All content is offered as is, without warranty of any kind, express or implied.
While reasonable efforts are made to ensure accuracy,
the author makes no guarantees regarding the correctness, completeness, or suitability of the materials.
Use of this Website and its content is at your own risk.
The author shall not be liable for any direct, indirect, incidental,
or consequential damages arising from the use of this Website or reliance on its materials,
to the fullest extent permitted by law.
2: Online Textbook and Practice Exams
Unless otherwise noted, all Website content, including text, images, examples, worked solutions, exercises,
and practice examinations,
is licensed under the
Creative Commons Attribution–NonCommercial 4.0 International
(CC BY-NC 4.0) License.
This license permits users to copy, distribute, display,
and adapt the material for non-commercial purposes,
provided that appropriate credit is given, a link to the license is included, and any changes made are indicated.
Commercial use of this content requires prior written
permission from the author.
Practice exams are provided for self-assessment purposes only and are not official examinations.
Scores or results do not guarantee academic performance.
The textbook sections are not guaranteed to match the topics, depth, or pacing that is expected in your academic program.
3: Attribution Requirements
When you use or adapt content from this Website, the appropriate attribution must include:
a title of the work or page (for example, 10.8: Taylor and Maclaurin Series);
the Website name, ValsCalc;
a link to the Website;
a link to the CC BY-NC 4.0 license; and
an indication of whether changes were made.
For example, an appropriate attribution is as follows:
Any source code authored in this Website, including custom CSS and JavaScript, is licensed under the MIT License, unless otherwise noted.
This Website uses third-party software, including MathJax, which is licensed under the Apache License 2.0.
Third-party software is governed by its own respective licenses and is not covered by this Website's content license.
The author also holds no responsibility for incorrect, incomplete, or incompatible code.
5: Acceptable Use
You agree to use the Website responsibly and reasonably, which excludes
using the Website for unlawful purposes;
violating the licensure of the materials of this Website;
interfering with or disrupting the operation of the Website;
attempting to gain unauthorized access to any part of the Website
or extract private information about the author or the Website's users; and
using automated tools to scrape or download content in a manner that imposes unreasonable load on the Website.
6: Third-Party Links
This Website may contain links to external Websites or resources.
The author is not responsible for the content, availability, or practices of third-party websites.
7: Changes to These Terms
These Terms of Use may be updated at any time without prior notice.
Continued use of the Website constitutes acceptance of the revised terms.
The Website may be modified, suspended, or discontinued at any time without notice.
8: Governing Law
These Terms of Use are governed by and construed in accordance with applicable law,
without regard to conflict of law principles.
