Topics › Mathematics

Sunday, 3rd March 2013

Spinning globe

This post describes my highly convoluted method of making an animated globe using Khan Academy's computer science framework.

A few weeks ago I found a set of coordinates for a world map in JSON format. I can't remember where exactly, but I think it was via a StackOverflow question. The first thing I did was to convert it into an SVG world map, because I like SVG and I've been meaning to get a world map for a while.

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Tuesday, 30th October 2012

Crude matrix multiplier

[Update: A slightly more sophisticated Javascript version of my program is available to use here]

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Monday, 7th November 2011

Python regression finder

I've been working my way through Stanford's online Machine Learning course recently and I thought I should put some of what I've learnt to use.

The program I made (file below) reads a file of tab-delimited data, assuming the first column is the independent values (x) and the second is the dependent values (y). It then gives some options:

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Sunday, 21st August 2011

Project:

Salman says

Analysis of subtitle text from over 1000 Khan Academy videos. 

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Sunday, 3rd July 2011

Python Fibonacci generator using reduce()

Khan Academy now has a series of videos on Python programming, and I've spent way too much of this weekend watching them, despite knowing all the basics of Python (I did learn a couple of things though). In fact, I spent so much time watching video, I finally broke the million point mark (and now have 77 points in binary):

My million points on Khan

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Saturday, 19th March 2011

Khan Academy

A few months ago, I wrote about various places to learn online, including the Khan Academy. Then a couple of weeks ago I saw a TED talk by Salman Khan where he talked about the Khan Academy (what else?) and its recent improvements. So I went back to the website and signed up.

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