Legal & Educational Disclaimer

1. Educational Intent & Non-Professional Advice

Biggan.me is an open-access, independent educational platform engineered to assist students and instructors with homework verification, exam revision, and conceptual STEM learning. The mathematical models, chemical solvers, physics simulators, and step-by-step proofs provided are solely for pedagogical reference.

⚠️ Notice: Nothing on this website constitutes certified professional engineering, industrial chemical synthesis, medical diagnostic, pharmaceutical dosage, or formal legal advice.

2. Computational Precision & Independent Verification

We benchmark all numerical constants, atomic weights, and governing formulas against globally recognized standards, including IUPAC (CIAAW), NIST, and CODATA (2018), as well as secondary curriculum syllabi (NCTB and NCERT).

Nevertheless, automated algorithms, floating-point arithmetic rounding, and browser runtime discrepancies may occasionally yield minor variations. Candidates preparing for standardized board or entrance examinations are strongly encouraged to cross-reference solutions with authorized curriculum textbooks. Biggan.me and its contributors assume no liability for academic test results, competitive outcomes, or consequential damages.

3. Laboratory & Chemical Safety Precautions

All stoichiometry, solution dilution formulas, and redox balancing steps are theoretical abstractions. Handling concentrated acids, strong alkalis, oxidizers, or electrical apparatus in a physical laboratory requires certified instructor supervision, well-ventilated fume hoods, and standard Personal Protective Equipment (PPE). Biggan.me expressly disclaims liability for any physical injury, property damage, or chemical accidents resulting from experimental recreation.

4. Casio® Trademark Notice & Fair Use

"Casio", "fx-991EX ClassWiz", "fx-991CW", "fx-991MS", and "fx-100MS" are registered trademarks of Casio Computer Co., Ltd. Biggan.me is an independent educational portal and is not affiliated with, endorsed by, or sponsored by Casio Computer Co., Ltd.

All calculator keystroke sequences, display simulations, and hardware comparisons are provided under fair use principles strictly for non-commercial student instruction on exam-authorized hardware.

5. Advertising & Third-Party Sponsorship Disclosure

To maintain free open access for students and support high-speed CDN infrastructure, Biggan.me may display third-party programmatic advertisements through Google AdSense and certified ad networks.

• All advertising placements are prominently labeled as "Advertisement" or "বিজ্ঞাপন".
• Advertisements are strictly segregated from calculation buttons and academic content to prevent unintentional interaction.
• Biggan.me does not endorse, verify, or guarantee any external products, services, or software advertised.

6. Editorial Inquiries & Corrections

If you detect any numerical error, formula typographical error, or ambiguous derivation, please contact our academic review board. We prioritize verifying and remediating reported scientific discrepancies promptly.