Sources & References
Every formula on MyCalcBuddy is sourced from verified, authoritative references. Here's our complete list of materials used to ensure accuracy.
Our Methodology
Source from Standards
We use formulas from established textbooks, scientific organizations, and peer-reviewed sources.
Cross-Verify
Each formula is checked against multiple sources to ensure consistency and accuracy.
Test & Validate
Calculators are tested with known values to verify implementation correctness.
Mathematics
Handbook of Mathematical Functions
Authors: Milton Abramowitz & Irene A. Stegun
Publisher: Dover Publications (1964 (reprinted))
ISBN: 978-0486612720
Used for: Core mathematical formulas, special functions, statistical tables
Mathematical Methods for Engineers
Authors: Erwin Kreyszig
Edition: 10th Edition
Publisher: Wiley (2011)
ISBN: 978-0470458365
Used for: Engineering mathematics, differential equations, linear algebra
Wolfram MathWorld
Used for: Mathematical formula verification and cross-referencing
Finance
Fundamentals of Financial Management
Authors: Eugene F. Brigham & Joel F. Houston
Edition: 15th Edition
Publisher: Cengage Learning (2019)
ISBN: 978-1337395250
Used for: Loan calculations, interest formulas, investment analysis, time value of money
Principles of Corporate Finance
Authors: Richard A. Brealey, Stewart C. Myers & Franklin Allen
Edition: 13th Edition
Publisher: McGraw-Hill (2019)
ISBN: 978-1260013900
Used for: Corporate finance calculations, valuation methods
Federal Reserve Consumer Credit Guidelines
Used for: Consumer loan standards, APR calculations
Physics
University Physics with Modern Physics
Authors: Hugh D. Young & Roger A. Freedman
Edition: 15th Edition
Publisher: Pearson (2019)
ISBN: 978-0135159552
Used for: Mechanics, thermodynamics, electromagnetism, optics formulas
Fundamentals of Physics
Authors: David Halliday, Robert Resnick & Jearl Walker
Edition: 11th Edition
Publisher: Wiley (2018)
ISBN: 978-1118230725
Used for: Classical physics, motion, energy calculations
Chemistry
Chemistry: The Central Science
Authors: Theodore L. Brown, H. Eugene LeMay, Bruce E. Bursten
Edition: 14th Edition
Publisher: Pearson (2017)
ISBN: 978-0134414232
Used for: Stoichiometry, molarity, pH calculations, gas laws
General Chemistry: Principles and Modern Applications
Authors: Ralph H. Petrucci, F. Geoffrey Herring, Jeffry D. Madura
Edition: 11th Edition
Publisher: Pearson (2016)
ISBN: 978-0132931281
Used for: Chemical calculations and conversions
Health & Nutrition
WHO BMI Classification
Used for: BMI standards, health metrics classification
Essentials of Human Nutrition
Authors: Jim Mann & A. Stewart Truswell
Edition: 5th Edition
Publisher: Oxford University Press (2017)
ISBN: 978-0198752486
Used for: Calorie calculations, BMR, nutritional metrics
Dietary Guidelines for Americans
Authors: U.S. Department of Agriculture & HHS
Publisher: U.S. Government (2020-2025)
Used for: Nutrition recommendations and calculations
Unit Conversions
NIST Guide to SI Units
Authors: National Institute of Standards and Technology
Publisher: U.S. Department of Commerce (2024)
Used for: Standard unit conversions, SI units, measurement standards
International System of Units (SI)
Authors: Bureau International des Poids et Mesures
Edition: 9th Edition
Publisher: BIPM (2019)
Used for: Official SI unit definitions and conversions
Statistics
Introduction to Probability and Statistics
Authors: William Mendenhall, Robert J. Beaver, Barbara M. Beaver
Edition: 15th Edition
Publisher: Cengage Learning (2019)
ISBN: 978-1337554428
Used for: Statistical calculations, probability distributions
Transparency & Accuracy
We believe in complete transparency. Every calculator includes its source reference, and we regularly review and update our formulas to ensure they remain accurate.
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