Lunchtime Playground: Fun with Mathematica

No advanced topic here, just some simple/silly/useless problems that slip into my mind during lunch break. Free use the contents in any way you like.

Aug 25, 2009

Visualize irrational number as random walk

Irrational numbers have decimal expansions that neither terminate nor become periodic. So we can get unlimited “random walk” steps from an i...

Aug 12, 2009

Display a plot by clicking a button

Ok, this seems to be very easy in Mathematica. Button["Show me a plot", Show[Plot[Sin[x], {x, -Pi, Pi}]]] Then you click the b...

Aug 7, 2009

View weighted graph with GraphPlot

Here is a simple example on how to customizing Graphplot. We like to use GraphPlot to visualize the number of people who commute into or out...

Jul 29, 2009

View stock market seasonality

A reader asks about the seasonal chart . Here is a simpler version. The seasonality is defined as the percent change from the beginning of...

Jul 28, 2009

View stock market with heatmap

There is a heatmap tool which let you view the stock price change at a glance. It can be recreated with Mathematica in several lines of cod...

View web version

Powered by Blogger.