eFunda
E Funda: Properties of Logarithmic Functions
A list of properties of logarithmic functions. A handy reference tool while working problems.
Other
Distance Math: Exponential and Logarithmic Functions
This site has explanations of the Exponential and Logarithmic Functions. The site has several examples
TeachEngineering
Teach Engineering: Linear Regression of Bmd Scanners
Students complete an exercise showing logarithmic relationships and examine how to find the linear regression of data that does not seem linear upon initial examination. They relate number of BMD scanners to time.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: About "E"
This site gives a discussion about e, the base of the natural logarithm. The site contains history of this real number a discussion on the rationality of the number and how to approximate the value of e. The site contains numerous links...
University of Virginia
U of Virgina: The Number E and the Exponential Function
This site provides an explaination of the number e with equations and examples.
Anne Arundel Community College
Anne Arundel Community College: Math 131: Special Bases
The tutorial examines base 10 and base e. Students learn about the mathematics concepts through examples with detailed solutions.
Cuemath
Cuemath: Euler's Number
You will learn about Euler's Number with simulations and practice questions. After this lesson, you will be able to easily solve problems on Euler's number value, Euler's number calculator, Euler's number proof, and Euler's number digit.
TeachEngineering
Teach Engineering: Light Intensity Lab
Students complete this Beer's Law activity in class. Students examine the attenuation of various thicknesses of transparencies. From this activity, students will understand that different substances absorb light differently. This can...
University of Saskatchewan (Canada)
University of Saskatchewan: Modeling Exponential Decay Using Logarithms
Radioactive decay is a real-life example of exponential decay. This site solves an example problem by using the exponential decay equation.
Texas Instruments
Texas Instruments: What Is the Number "E"?
In this activity, students explore the fundamental theorem of calculus. They apply this theorem to understand the number "e" - the base of the natural logarithm. They also use integration and natural logarithmic function to solve a...
Texas Instruments
Texas Instruments: Numb3 Rs: Exponential Modeling
Based off of the hit television show NUMB3RS, this lesson introduces students to exponential equations, their graphs, and their application in the real world. The lesson is framed in the context of the number of cell phone users for a...
Texas Instruments
Texas Instruments: Approximate Solutions: Differential Equations
The base of the natural logarithm function, is called Euler's number, in honor of Leonhard Euler, a great Swiss mathematician. (Continued. See "before the activity.")
Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Exponential Equations
Use your knowledge of logarithmic properties in order to solve "exponential equations where x is in the exponent, but the bases do not match." This tutorial offers simple examples and practice exercises for you to complete and check.
Wolfram Research
Wolfram Math World: Laplace Limit
This page gives a brief explanation of the Laplace limit, the value of "e" "for which Laplace's formula for solving Kepler's equation begins diverging."
Other
Wpi: Exponential Decay and Effective Medicine Dosage
This site is an example of the use of exponential decay. The example involves the effectiveness of a medical dosage over time.
Purple Math
Purplemath: Change of Base
This section of a Purplemath lesson gives the formula for a change of base with several examples. The lesson gives examples of typical problems involving changing the base of logarthims including: evaluating, converting to another base;...
Chemistry Collective
Chem Collective: Determination of the P H Scale
This virtual lab activity where students perform the method of successive dilutions using HCl, NaOH, a pH meter, and universal indicator solution to help understand the logarithmic nature of the pH scale.
Curated OER
Egin{displaymath}
This site from the University of St. Andrew is a comprehensive site explaining the Natural Logarithm Function. The site contains one example.
Curated OER
Egin{displaymath}
This site from the University of St. Andrew is a comprehensive site explaining the Natural Logarithm Function. The site contains one example.