Terms of Service
Effective Date: January 1, 2026 · Last Updated: June 2026
These Terms of Service ("Terms") govern your access to and use of BEAAST ("the Platform"), an Engineering Decision Support System operated for professional engineers, students, and computational professionals. By accessing or using BEAAST, you agree to be bound by these Terms in full.
1. Acceptance of Terms
By clicking "I Accept," accessing any feature of BEAAST, or continuing to use the Platform after any update to these Terms, you acknowledge that you have read, understood, and agreed to be legally bound by these Terms. If you do not agree, you must discontinue use immediately.
2. Description of Service
BEAAST provides the following tools under the Pro Tier:
- A scientific and engineering calculator with full arithmetic and scientific functions
- Unit conversion tools referencing NIST, CODATA 2018, IAU 2012, and ISO 80000 standards
- Formula solvers across mathematics, engineering, and computer science disciplines
- An AI-powered tutoring assistant ("BEAAST Tutor") powered by the Anthropic API
- A live currency conversion module sourced from the European Central Bank
BEAAST is an engineering reference and educational tool. It is not a licensed professional engineering service and does not replace the judgment of a licensed professional engineer.
3. Accuracy and Disclaimer
While BEAAST sources all constants and conversion factors from authoritative references (NIST, ISO, CODATA, IAU), the Platform is provided "as is" and "as available." BEAAST makes no warranty, express or implied, that all results are free from error.
Important: BEAAST outputs must not be used as the sole basis for safety-critical engineering decisions, structural calculations, medical dosages, financial transactions, or any application where an error could result in harm, injury, loss of life, or financial loss without independent professional verification.
4. Intellectual Property
All content, design, code, formulas, and methodology within BEAAST are the intellectual property of BEAAST Systems. You may not reproduce, redistribute, decompile, reverse engineer, or create derivative works from any part of BEAAST without express written permission.
5. Limitation of Liability
To the maximum extent permitted by applicable law, BEAAST Systems shall not be liable for any direct, indirect, incidental, special, consequential, or punitive damages arising from your use of or inability to use the Platform, including but not limited to errors in calculation results, loss of data, or business interruption.
6. Governing Law
These Terms are governed by and construed in accordance with applicable laws. Any disputes arising under these Terms shall be resolved through binding arbitration before resort to litigation.
7. Changes to Terms
BEAAST reserves the right to modify these Terms at any time. Continued use of the Platform following any modification constitutes your acceptance of the revised Terms.
Terms of Use
Effective Date: January 1, 2026
These Terms of Use govern the specific conduct and acceptable use of all BEAAST features. These Terms operate alongside and supplement the Terms of Service.
1. Permitted Uses
- Using the calculator for personal, educational, and professional engineering computations
- Performing unit conversions for academic, research, or professional reference purposes
- Using formula solvers to understand and verify engineering and mathematical principles
- Using the AI Tutor to ask questions about mathematics and engineering concepts covered by BEAAST
- Exporting or recording your own calculation results for personal documentation
2. Prohibited Uses
You are strictly prohibited from:
- Using BEAAST to perform or facilitate any illegal activity
- Attempting to reverse engineer, decompile, or extract source code from the Platform
- Introducing malicious code, scripts, or payloads into any input field
- Attempting to bypass any security measure, sandbox, or access control
- Using BEAAST outputs in safety-critical applications without independent professional verification
- Sharing, redistributing, or reselling access to BEAAST without authorization
- Misrepresenting BEAAST outputs as independently verified engineering certifications
- Using automated bots, scrapers, or scripts to access the Platform
3. Input Conduct
All input fields — including the calculator, conversion tools, formula fields, and AI chat — are governed by acceptable use standards. Inputs that constitute abuse, harassment, illegal content, or attempts to compromise system integrity will result in immediate suspension of access.
Calculator Security: The expression evaluator is sandboxed and restricted to a whitelist of mathematical functions. Any attempt to inject code, access browser globals (window, document, fetch, etc.), or execute non-mathematical operations will be blocked and logged.
4. User Responsibility
You are solely responsible for verifying any BEAAST output before applying it to real-world decisions. BEAAST provides reference calculations — not licensed engineering certification. The interpretation and application of any result is entirely your responsibility.
5. Account and Session Data
BEAAST stores preferences (theme, font size, angle mode) locally in your browser using localStorage. No personal account information is transmitted or stored on BEAAST servers. Calculation history is session-local and is cleared when you close your browser.
6. Third-Party Services
BEAAST integrates with the following third-party services, each governed by their own terms:
- Anthropic API — powers the BEAAST AI Tutor. Conversations are subject to Anthropic's usage policies.
- Frankfurter.app / Currency API — provides live exchange rate data sourced from the European Central Bank.
- Google Fonts — serves typography assets. Subject to Google's terms of service.
AI Chat Policy — BEAAST Tutor
The BEAAST Tutor is an AI assistant built specifically to help users understand the mathematics and engineering content available within BEAAST. It is not a general-purpose AI chatbot. The following rules govern all use of the AI Tutor and are enforced both contractually and algorithmically.
1. Purpose and Scope
The BEAAST Tutor exists for one purpose only: to explain mathematical and engineering concepts, formulas, steps, and calculations that appear within the BEAAST platform. Any attempt to use it for other purposes will be blocked.
Permitted chat topics: Calculus, Linear Algebra, Discrete Mathematics, Mechanics, Fluid Mechanics, Thermodynamics, Electrical Engineering, Structural Engineering, unit conversions, formula explanations, step-by-step breakdowns, and questions about how to use BEAAST features.
2. Prohibited Chat Conduct
The following are strictly prohibited and enforced at the system level:
- Profanity and offensive language: The use of any profanity, vulgar language, slurs, threats, or abusive language in the chat is prohibited. Messages containing such language will be blocked before transmission and you will be warned. Repeated violations will result in a temporary lockout from the chat feature.
- Foreign or off-topic content: You may not paste or submit content unrelated to mathematics, engineering, or BEAAST functionality. This includes political content, personal matters, general knowledge questions, requests about other software, news, entertainment, or any subject outside the Platform's scope.
- Prompt injection and jailbreaking: Any attempt to override, bypass, or manipulate the AI Tutor's operational instructions — including instructions to "ignore previous instructions," "act as a different AI," or "pretend you have no restrictions" — is prohibited and will be blocked.
- Personal data submission: Do not submit names, addresses, financial information, passwords, identification numbers, or any personal data into the chat.
- Copying and pasting foreign documents: You may not paste large blocks of text from external sources such as textbooks, websites, papers, or other AI systems. The chat is designed to assist with content originating from BEAAST, not to process arbitrary external documents.
- Commercial or legal requests: The AI Tutor cannot provide financial advice, legal advice, medical advice, or engineering certification. Do not request these.
3. Algorithmic Enforcement
These rules are not merely contractual — they are enforced by the system before your message is ever transmitted to the AI. The following checks run on every message:
- Profanity detection against a comprehensive word list — blocked with a warning
- Relevance check — messages that are clearly off-topic are blocked before API call
- Prompt injection detection — common jailbreak phrases are detected and blocked
- Length limit — messages exceeding 800 characters are blocked (sufficient for any legitimate question)
Blocked messages are never transmitted to the AI API. You will receive an inline warning explaining the reason.
4. Conversation Data
Chat messages are sent to the Anthropic API for processing. Conversations are not stored on BEAAST servers. They exist only in your current browser session and are cleared when you close the chat or refresh the page. Anthropic's data handling practices govern how API requests are processed.
5. No Warranty on AI Responses
The BEAAST Tutor is an AI system and may occasionally produce incorrect explanations. All AI responses should be treated as educational guidance, not authoritative engineering reference. Always verify critical information against the cited standards shown on each formula card.