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Archive for the 'Fun with Numbers' Category

Distance between two points on Earth

Posted by John on June 10th, 2003

For a project I’ve been working on, I needed to be able to calculate the great-cirlce distance between two points on the globe given their latitudes and longitudes. There has been much discussion on the topic (because the data is of great utility), and I’ve certainly not been able to add anything to it [...]

Riddle me this

Posted by Jordan on May 17th, 2003

A mailing list I’m on that mainly focuses on cryptography has some fun applications into more real world problems. A fun puzzle came across the list recently that is built on some crypto ideas, but on the face of it, is a simple problem solving challenge. The first question is easy, the second [...]

Piece of pi

Posted by Jordan on May 16th, 2003

I’m sure this story was heavily slashdotted at some point, and I just missed it, but I’m suprised none of my friends pointed it out to me. I am, after all, the freak who memorized a couple of hundred digits of pi in 3rd grade because I thought it might be fun.
If you [...]