Last updated: September 3, 2026.
Permitted use
You may use the site for lawful education, evaluation, and engineering work. Do not disrupt the service, evade security controls, automate abusive traffic, or misrepresent site content as a certification.
No professional engagement
The tools provide general information and do not create an engineering, consulting, employment, or fiduciary relationship. You remain responsible for design decisions, verification, compliance, and deployment.
Availability and changes
The site may change equations, assumptions, content, or availability as errors are corrected and capabilities evolve. Preserve your own design records rather than relying on a result remaining available.
Liability
To the extent permitted by applicable law, the site is provided without warranties and its operator is not liable for losses arising from reliance on estimates. Jurisdictions that do not allow particular exclusions may provide different rights.
Intellectual property
Site text, presentation, and original software are protected by applicable law. Protocol and product names belong to their respective owners; references do not imply endorsement.