13 May 2015

How do we find the length of a spherical spiral, with equidistant spirals? Here’s the solution to this interesting reader’s question.

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Posted in Mathematics **|** 2 Comments »

Tags: Culture, Graphs, Real-world math, Technology

28 April 2015

The Information Paradox is an interesting challenge to the accepted notions of how life on Earth came to be. There’s some mathematics involved, too!

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Posted in Mathematics **|** 2 Comments »

Tags: Graphs, Reviews, Thinking & learning

8 April 2015

There’s some interesting mathematics behind hyperbolic discounting, a behavioral finance concept. Here’s how it compares to exponential discounting.

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Posted in Mathematics **|** 6 Comments »

Tags: Graphs, Real-world math, Technology

9 March 2015

An updated spring applet uses Runge-Kutta Order 4 Method for solving a differential equation numerically.

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Posted in Mathematics **|**

Tags: Graphs, Interactive, Technology

19 February 2015

GeoGebra impresses with its versatility, ease of use and power, and now has 3D graphs. It’s a great exploratory tool for math students and instructors.

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Posted in Mathematics **|** 2 Comments »

Tags: Graphs, Interactive, Technology

30 January 2015

Here’s a 3-minute summary of 10 mathematical equations that “changed the world”.

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Posted in Math movies **|**

10 December 2014

There were solar powered engines long before oil-based ones. Here’s a story about French mathematics teacher Augustin Mouchot, who invented one.

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Posted in Environmental math **|** One Comment »

1 December 2014

Publishing math on the Web can be a challenge. Here’s a comparison of MathJax, ASCIIMathML, KaTeX and other math publishing solutions.

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Posted in Mathematics **|** One Comment »

Tags: Technology

28 November 2014

GeoGebra’s latest version offers 3D graphs and output that can be viewed on tablet devices. Here’s a quick overview.

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Posted in Mathematics **|** 8 Comments »

Tags: Interactive, Technology

27 November 2014

Here we look at some of the math behind the cross wind landing applet in the section on adding 2D vectors.

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Posted in Mathematics **|** 2 Comments »

Tags: Interactive, Real-world math, Technology