Acceptance of these terms
Accessing or using this website indicates acceptance of these terms. Visitors who do not agree should stop using the website.
Permitted use
Resources may be used for lawful personal, classroom, homework, teaching, and educational purposes. Users must not interfere with website operation, attempt unauthorized access, distribute malicious code, or use automated systems in a harmful manner.
Educational content and calculators
Content and results are provided as general educational aids. Users are responsible for checking formulas, values, units, assumptions, suitability, and safety before relying on a result.
Intellectual property
Unless otherwise stated, original website text, branding, layouts, calculator interfaces, and resource designs are protected by applicable intellectual property rules. Limited classroom use does not transfer ownership.
No warranty
The website is provided on an as-available basis without guarantees that every resource will always be accurate, complete, uninterrupted, secure, or suitable for a specific purpose.
Limitation of liability
To the extent permitted by applicable law, the website and its operators are not responsible for losses, injuries, damages, or decisions resulting from use of, inability to use, or reliance on the website.
Related policies
Please also review our privacy policy, educational disclaimer, and editorial policy.
Changes to these terms
These terms may be revised as the website, services, business structure, or applicable requirements change. Continued use after an update indicates acceptance of the revised terms.