đ Agreement to Terms
Simple Summary
By using 84calc, you agree to these terms. They're designed to be fair for everyone - we provide a free service, and users use it responsibly.
Welcome to 84calc! These Terms of Service ("Terms", "Agreement") govern your use of the 84calc website at 84calc.com (the "Service") operated by 84calc ("us", "we", or "our").
By accessing or using our Service, you agree to be bound by these Terms. If you disagree with any part of these Terms, then you may not access the Service.
"Service" refers to the 84calc website, including our TI-84 calculator emulator, documentation, guides, and all related features and content.
These Terms apply to all visitors, users, and others who access or use the Service, including students, teachers, and educational institutions.
đ§Ž Description of Service
What We Provide
84calc offers:
- Free TI-84 Plus CE Emulator: Browser-based calculator functionality
- Educational Resources: Guides, tutorials, and help documentation
- Cross-Platform Access: Works on computers, tablets, and smartphones
- No Registration Required: Immediate access without account creation
Service Availability
We strive to maintain 99.9% uptime, but like all online services, 84calc may occasionally be unavailable due to maintenance, updates, or unforeseen technical issues.
Educational Purpose
Our service is designed primarily for educational use by students, teachers, and educational institutions. We support learning and academic advancement.
Service Modifications
We reserve the right to modify, suspend, or discontinue any part of the Service at any time. We'll provide reasonable notice for significant changes that affect functionality.
â Acceptable Use Policy
You may use 84calc for any lawful purpose, including:
Educational Use
- Homework and class assignments
- Test preparation and practice
- Learning mathematics and science concepts
- Teaching and educational demonstrations
Professional Use
- Engineering calculations and design work
- Financial modeling and analysis
- Scientific research and data analysis
- Business planning and forecasting
Personal Use
- Personal finance calculations
- Home improvement planning
- Hobby projects requiring mathematical calculations
- General mathematical exploration
Fair Use Guidelines
Use our service reasonably and don't try to overload our servers. We provide this service free for everyone, so please be considerate of other users.
đĢ Prohibited Activities
To keep 84calc safe and available for everyone, you agree NOT to:
Technical Abuse
- Automated Access: Use bots, scrapers, or automated tools to access the Service
- System Overload: Attempt to overload our servers or infrastructure
- Security Testing: Probe, scan, or test vulnerabilities without permission
- Reverse Engineering: Attempt to reverse engineer our calculator software
Misuse of Service
- Commercial Redistribution: Resell, redistribute, or commercialize our service
- Framing/Embedding: Embed our calculator in other websites without permission
- False Representation: Claim ownership of our service or content
- Trademark Infringement: Use our name, logo, or branding without permission
Harmful Activities
- Illegal Activities: Use the service for any illegal purpose
- Malicious Code: Introduce viruses, malware, or harmful code
- Harassment: Harass, abuse, or harm other users
- False Information: Spread misinformation or false content
Academic Integrity
While our calculator is a powerful educational tool, always follow your school's academic integrity policies. Some exams may prohibit calculator use, and it's your responsibility to comply with testing rules.
ÂŠī¸ Intellectual Property Rights
Our Intellectual Property
The 84calc service and its original content, features, and functionality are owned by 84calc and are protected by:
- International copyright laws
- Trademark regulations
- Other intellectual property rights
What You Can Do
- Use the Service: Access and use our calculator for permitted purposes
- Share Links: Share links to 84calc with others
- Educational Reference: Reference our service in academic work with proper citation
What You Cannot Do
- Copy, modify, or distribute our software
- Use our trademarks without permission
- Create derivative works based on our service
- Remove copyright or proprietary notices
TI-84 Trademark: "TI-84" and related trademarks are owned by Texas Instruments. 84calc is an independent emulator and is not affiliated with Texas Instruments.
User-Generated Content
Any calculations, programs, or content you create using our service remain yours. We don't claim ownership of your work or calculations.
â ī¸ Disclaimers and Warranties
Important Legal Notice
84calc is provided "as is" without warranties of any kind. While we strive for accuracy, we cannot guarantee perfect results in all situations.
Service Disclaimers
We provide 84calc on an "as is" and "as available" basis. We disclaim all warranties, including:
- Accuracy: While our emulator is highly accurate, results may vary
- Availability: Continuous, uninterrupted, or error-free operation
- Compatibility: Perfect compatibility with all devices and browsers
- Fitness for Purpose: Suitability for any particular use case
Educational Disclaimer
Academic Responsibility: You are responsible for ensuring that calculator use complies with your institution's policies and examination rules. We are not responsible for academic consequences resulting from improper use.
Calculation Accuracy
While our TI-84 emulator aims for high accuracy, you should verify critical calculations using multiple methods or official tools, especially for:
- Professional engineering projects
- Financial decisions
- Scientific research
- Safety-critical applications
đĄī¸ Limitation of Liability
To the maximum extent permitted by law, 84calc shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including:
- Loss of profits or data
- Academic or professional consequences
- Interruption of business or studies
- Cost of substitute services
Maximum Liability
Our total liability to you for all damages shall not exceed the amount you paid us in the 12 months preceding the claim. Since our service is free, this amount is $0.
Why These Limitations Exist
We provide 84calc completely free of charge. These liability limitations allow us to continue offering this service without charge while managing legal risks.
Exceptions
These limitations don't apply to:
- Our gross negligence or willful misconduct
- Death or personal injury caused by our negligence
- Fraud or fraudulent misrepresentation
- Any liability that cannot be excluded by law
đ Termination
Your Right to Stop Using the Service
You may stop using 84calc at any time without notice. There are no cancellation fees or procedures since no account registration is required.
Our Right to Terminate Access
We may terminate or suspend your access immediately, without notice, for:
- Violation of these Terms of Service
- Abuse of our service or infrastructure
- Illegal activities
- Harm to other users or our service
Effect of Termination
Upon termination:
- Your right to use the Service ends immediately
- Any data stored locally in your browser remains yours
- These Terms remain in effect for past use
- Sections regarding liability and intellectual property survive
Fair Enforcement
We only terminate access in serious cases of abuse. Most issues can be resolved through communication. Contact us if you believe your access was terminated in error.
đ Changes to Terms
How We Update These Terms
We may update these Terms of Service from time to time to reflect changes in our service, legal requirements, or business practices.
Notice of Changes
When we make changes, we will:
- Update this page with the new terms
- Change the "Last Updated" date at the top
- Provide prominent notice for significant changes
- Email notification if we have your contact information
Your Acceptance of Changes
Continued use of 84calc after changes are posted constitutes acceptance of the new terms. If you don't agree with changes, please stop using the service.
Major vs. Minor Changes
- Minor changes: Updates for clarity, typos, or minor policy adjustments
- Major changes: Significant alterations to your rights or our obligations
For major changes, we'll provide at least 30 days' notice before they take effect.
âī¸ Governing Law & Disputes
Applicable Law
These Terms shall be interpreted and governed by the laws of [Your Jurisdiction], without regard to conflict of law provisions.
Dispute Resolution
We prefer to resolve disputes amicably:
- Direct Communication: Contact us first to resolve issues
- Good Faith Negotiation: We'll work together to find solutions
- Mediation: If needed, we can try mediation
- Legal Action: As a last resort, through appropriate courts
Class Action Waiver
Any disputes will be resolved individually, not as part of a class action or collective proceeding.
đ General Provisions
Entire Agreement
These Terms, together with our Privacy Policy, constitute the entire agreement between you and 84calc regarding the Service.
Severability
If any provision of these Terms is found to be unenforceable or invalid, the remaining provisions will continue in full force and effect.
Waiver
Our failure to enforce any right or provision of these Terms will not be considered a waiver of those rights.
Assignment
You may not assign or transfer your rights under these Terms without our written consent. We may assign our rights and obligations without restriction.
Contact Information
Questions about these Terms should be sent to [email protected]