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Category Archives: Maths
Decathalon
The following is blatantly stolen (and slightly adapted) from Cosmic Variance
The decathlon combines ten different track and field events, so to come up with a final score we need some way to tally up all of the scores. You know what that means: an equation. Let’s imagine that you finish the 100 [...]
Also posted in Sport Tagged Beijing, Complex Numbers, Decathalon, Maths, Olympics, Power Laws Leave a comment
You could be Johnny
I’ve just posted the following to this article about the tendency in the UK to see being bad at Maths (and Science) as a mark of pride.
It really annoys me every time a presenter on the news ‘jokes’ that they can’t do maths or science. Melvyn Bragg on the usually excellent “in our time” is [...]
GeoHashing
Via xkcd I learned of a new idea called ‘Geohashing‘
Essentially the idea is that based on some seed data, some complicated sums are done to give a location.
People get to that location for a meetup.
A map tool is available which does the sums for you. You set the date, click your area and it gives [...]
This post is part of a series of 47 posts which begins with The Caesar Shift, the latest post in the series is Letter Groups.
Also posted in Geeky, Modern Cryptography Tagged Cryptography, GeoHashing, GPS, md5, Modern Cryptography, xkcd Leave a comment
I will derive
I… I will derive… find the derivative of x, position, with respect to time.
It’s as easy as can be, just find dx/dt…. I will derive!
A maths geek parody to the music of Gloria Gaynor. What’s not to like?
Happy Pi Day