Terms of Service

1. Acceptance of Terms

By accessing and using SinCosTan ("the Service," "our website," or "we"), you accept and agree to be bound by the terms and provision of this agreement. If you do not agree to abide by the above, please do not use this service.

These Terms of Service apply to all visitors, users, and others who access or use the Service. Our mathematical calculators and educational content are provided subject to these terms.

2. Description of Service

2.1 What We Provide

SinCosTan provides free online mathematical calculators and educational resources including:

• Trigonometric function calculators
• Geometry and triangle solving tools
• Unit conversion calculators
• Educational content and tutorials
• Mathematical reference materials

2.2 Service Availability

We strive to maintain high uptime but do not guarantee that the Service will be available at all times. The Service may be temporarily unavailable due to maintenance, updates, or technical issues.

3. User Responsibilities

3.1 Acceptable Use

You agree to use the Service only for lawful purposes and in accordance with these Terms. You agree not to:

• Use the Service for any illegal or unauthorized purpose
• Attempt to gain unauthorized access to our systems
• Interfere with or disrupt the Service or servers
• Transmit viruses, malware, or other harmful code
• Violate any applicable laws or regulations
• Use automated systems to access the Service excessively

3.2 Educational Use

Our tools are designed for educational, personal, and professional use. While we strive for accuracy, users are responsible for verifying results for critical applications.

4. Accuracy and Reliability

4.1 Mathematical Accuracy

We make every effort to ensure our calculators provide accurate results using established mathematical principles and algorithms. However, we cannot guarantee absolute accuracy for all inputs and scenarios.

4.2 User Verification

Users should verify results independently, especially for critical applications such as:

• Professional engineering calculations
• Safety-critical measurements
• Financial or commercial decisions
• Academic examinations where accuracy is essential

4.3 Educational Content

Our educational content is provided for informational purposes and should not replace formal mathematical education or professional consultation.

5. Intellectual Property Rights

5.1 Our Content

The Service and its original content, features, and functionality are owned by SinCosTan and are protected by international copyright, trademark, patent, trade secret, and other intellectual property laws.

5.2 User License

We grant you a limited, non-exclusive, non-transferable license to access and use the Service for personal, educational, and commercial purposes in accordance with these Terms.

5.3 Restrictions

You may not:

• Reproduce, distribute, or create derivative works from our content
• Remove or alter any copyright notices or proprietary markings
• Reverse engineer or attempt to extract source code
• Use our content to create competing services

6. Privacy and Data Protection

Your privacy is important to us. Our collection and use of personal information is governed by our Privacy Policy, which is incorporated into these Terms by reference. Please review our Privacy Policy to understand how we handle your information.

6.1 Calculation Data

We do not store or retain the numbers, angles, or calculations you enter into our tools. All calculations are processed server-side and immediately discarded after providing results.

7. Disclaimers and Limitation of Liability

7.1 Service Disclaimer

The Service is provided on an "AS IS" and "AS AVAILABLE" basis. We expressly disclaim all warranties of any kind, whether express or implied, including but not limited to:

• Implied warranties of merchantability
• Fitness for a particular purpose
• Non-infringement
• Accuracy or completeness of results
• Uninterrupted or error-free operation

7.2 Limitation of Liability

In no event shall SinCosTan, its affiliates, or their respective directors, employees, or agents be liable for any indirect, incidental, special, consequential, or punitive damages, including but not limited to:

• Loss of profits or revenue
• Loss of data or calculations
• Business interruption
• Personal injury or property damage
• Any other damages arising from use of the Service

7.3 Maximum Liability

To the maximum extent permitted by law, our total liability to you for all damages, losses, and causes of action shall not exceed the amount you have paid us for the Service (which is zero for our free services).

8. Indemnification

You agree to defend, indemnify, and hold harmless SinCosTan, its affiliates, and their respective directors, officers, employees, and agents from and against any and all claims, damages, obligations, losses, liabilities, costs, or debt, and expenses (including but not limited to attorney's fees) arising from:

• Your use of the Service
• Your violation of these Terms
• Your violation of any third-party rights
• Any content you submit or transmit through the Service

9. Third-Party Services and Links

Our Service may contain links to third-party websites or services that are not owned or controlled by SinCosTan. We have no control over and assume no responsibility for the content, privacy policies, or practices of any third-party websites or services.

You acknowledge and agree that SinCosTan shall not be responsible or liable for any damage or loss caused by or in connection with the use of any third-party content, goods, or services.

10. Termination

10.1 Termination by You

You may discontinue using the Service at any time. No formal termination is required as we do not maintain user accounts.

10.2 Termination by Us

We may terminate or suspend your access to the Service immediately, without prior notice, for any reason, including but not limited to:

• Violation of these Terms
• Misuse of the Service
• Illegal or harmful activities
• Technical or security reasons

10.3 Effect of Termination

Upon termination, your right to use the Service will cease immediately. All provisions of these Terms that by their nature should survive termination shall survive.

11. Governing Law and Jurisdiction

These Terms shall be governed by and construed in accordance with the laws of the jurisdiction where SinCosTan operates, without regard to its conflict of law provisions.

Any disputes arising out of or relating to these Terms or the Service shall be resolved through binding arbitration in accordance with the commercial arbitration rules of the applicable jurisdiction.

12. Changes to Terms

We reserve the right to modify or replace these Terms at any time. If a revision is material, we will:

• Post the updated Terms on this page
• Update the "Last updated" date
• Provide notice of significant changes via our website
• Allow reasonable time for review before changes take effect

Your continued use of the Service after any such changes constitutes your acceptance of the new Terms.

13. General Provisions

13.1 Entire Agreement

These Terms, together with our Privacy Policy, constitute the entire agreement between you and SinCosTan regarding the Service.

13.2 Severability

If any provision of these Terms is found to be unenforceable or invalid, that provision will be limited or eliminated to the minimum extent necessary so that these Terms will otherwise remain in full force and effect.

13.3 Waiver

No waiver of any term of these Terms shall be deemed a further or continuing waiver of such term or any other term.

13.4 Assignment

You may not assign or transfer these Terms or your rights hereunder, in whole or in part. We may assign these Terms without restriction.

14. Contact Information

If you have any questions about these Terms of Service, please contact us: