bodmas blog

The GIMP is a powerful open source image editing application that works on both Windows and Mac OS X platforms. I can edit images in the same application at work (Win 2000) and at home (Mac OS X).

There is a simple graphical construction that you can add to estimate a more accurate value for the mode of a grouped frequency distribution (see the red lines on the sketch graph below).

Can you write a formula for the value of the mode estimate in terms of the locations of the bar boundaries and the [...]

“Within three months of opening up of the Internet kiosk, it was found that the children, mostly from the slum, had achieved a certain level of computer skills without any planned instructional intervention. They were able to browse the Internet, download songs, go to cartoon sites, work on MS Paint. They even invented their own [...]

Edward Lorenz was using a primitive computer (it was 1963) to numerically integrate an apparently simple set of coupled differential equations. The computer worked to 6 decimal places and printed out each line to 3 places. Restarting a run, he noticed that the trace started looking similar but became slowly different to a previous run [...]

MacNoteTaker is a possible work around for not being able to synchronise memo pad files. It is a Palm application that allows long notes and a Mac OS X conduit that allows notes to be synchronised and exported as text files. I’d rather just have a conduit for memo pad documents, but this looks better [...]