Logarithm

Guide Note:In mathematics, the logarithm of a number with respect to a base is the exponent which must be raised to get the number.

Fast Facts:

1. The origins of logarithms dates back to the early 17th century
2. A common application of logarithms is to solve an equation where the exponent is unknown
3. The most widely used base for a logarithm is 10
4. The natural logarithm is commonly used, as is a logarithm with base e
5. John Napier was the earliest and perhaps greatest contributor to logarithms

Edit Guide Note and Fast Facts

• Also try: Algebra
  

The Mahalo Top 7

1. Wikipedia: Logarithm
2. Wolfram MathWorld: Logarithm
3. PlanetMath.org: Logarithm
4. The University of Utah: What on Earth is a Logarithm?
5. Purplemath: Logarithms: Introduction to "The Relationship"
6. The University of North Carolina: Logarithms
7. Video: Intro To Logarithms (Time: 9:54)
   
   
   

Logarithm News

• Google News: Logarithm News
• ThomasNet: Logarithmic Amplifier is Suited for Signal Compression (2007) 
• The New York Times: "Teachers Go Gaga for Logarithms" (1992) 

Logarithm History and Background

• University of Bath: History of Logarithms
• Humbold State University: The History of Logarithms
• Xavier Lefort: History of the Logarithms
• Spiritus-Temporis.com: Logarithm: History 
• Bnet: "Computational Geology 27 Logarithmic Scales" (2004) | "A Logarithmic Barrier Approach to Solving the Dashboard Planning Problem" (2003) 
• Science News Online: Ivar Peterson's MathTrek: First Digits (1998)

Notable Figures in Logarithm

John Napier

• Wikipedia: John Napier
• University of St Andrews: John Napier
• JohnNapier.com: John Napier

Joost Bugri

• Wikipedia: Joost Burgi
• Institute And Museum Of The History Of Science: Joost Burgi
• University of St Andrews: Joost Burgi

Henry Briggs

• Wikipedia: Henry Briggs
• University of St Andrews: Hengry Briggs
• The History of Computing Project: Henry Briggs

Gregoire de Saint-Vincent

• Wikipedia: Gregoire de Saint-Vincent
• Fairfield University: Gregorie de Saint-Vincent
• Open-Site: Saint-Vincent, Grégoire Biography

Isaac Newton

• Mahalo's Guide to Sir Isaac Newton
• Wikipedia: Isaac Newton
• University of St Andrews: Sir Isaac Newton
• Trinity College: Isaac Newton

Logarithm Fun Stuff

• Making Math Fun: Fun Math Games
• Tift County Public Schools: Exploring Exponential & Logarithmic Fun
• FunTrivia.com: Quiz - Logarithms 
• Interactive Mathematics: Logarithms to Base 10

Logarithm Research

• HighBeam Research: Logarithm Search
• Google Scholar Search: Logarithm
• John Napier: A Description of the Admirable Table of Logarithms

Logarithm Education Resources

• MathsDirect: Logarithms Tutorials
• West Texas A & M University: Logarithmic Functions
• University of Tennessee, Knoxville: Logarithms
• Nipissing University: Logarithms Tutorial
• Mathcentre: Algebra - Logarithms
• Arizona State University: Exponential and Logarithmic Equations
• Algebra.com: Algebra: Logarithm

Logarithm Photos and Videos

• Google Image Search: Logarithm
• Yahoo! Image Search: Logarithm
• YouTube & Google Video Search: Logarithm
• YouTube: Introduction to Logarithm Properties (Time: 9:14)
• YouTube: Natural Logarithms (Time: 4:03)
• YouTube: Logarithm (Time: 1:45)

Logarithm Blogs and Forums

• Google Blog Search: Logarithm
• Gower's Weblog: How Should Logarithms be Taught?
• Math Help Forum: Logarithms?!
• The Math Forum@Drexel: Logarithms Explained

Logarithm Organizations and Societies

• American Mathematical Society: Logarithm Search
• The Mathematical Association of American: Logarithm Search

Logarithm Books and Publications

• Google Product Search: Logarithm
• Wikibooks: ntermediate Algebra/Logarithms
• MathLogarithms.com: Math Book on Solving Logarithms
• eBay: Logarithm Books
• Amazon.com: Logarithm Books
• Yahoo! Shopping: Logarithm Books Search

Logarithm Theories

• JSTOR: Napier's Method as a Basis for the Theory of Logarithms 
• Wolfram Demonstration Project: The Law of the Iterated Logarithm in Probability Theory

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