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London 2012 Olympics — Men and Women 400-metre medley

Alan brought up the suspicion to Ye’s world record in women 400 metres individual medley. And I quote: “Her last split caused controversy (deep suspicion of doping) as she swam it faster than the...

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London 2012 Olympics — Medals vs GDP and population

It’s already midnight. I’m sitting near my bed. And before going to bed, I’ll type my last post on London 2012 Olympics. Olympic games are not only individual competitions, but also the reflections of...

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googleVis — NASA’s exploration of Mars

After generating a few interactive charts with googleVis, I realized that it’s a great way to visualize numeric data, especially multi-dimentional data. Days ago, my colleague sent me a picture taken...

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Project Euler — problem 19

I’ve been working overtime last weekend. Although I suffered little from the Monday syndrome, I still need a break. So, I’m back to the Project Euler after days of Olympic data digging. Today, I’m...

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googleVis — Diaoyu Islands

China just announced the Diaoyu Islands baselines yesterday (US EST). Take a look at their locations (Clike here for the google map).

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Project Euler — problem 20

It’s been quite a while since my last post on Euler problems. Today a visitor post his solution to the second problem nicely, which encouraged me to keep solving these problems. Just for fun! 10! = 10...

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Project Euler — problem 21

It’s been over one month since my last post on Euler problem 20, when  I was planning to post at least one on either Euler project or visualization. So I am four posts behind; I’ll try to catch up....

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Project Euler — problem 22

Just had my supper. Stomach is full of stewed beef and potato.  I’d like to solve the 22nd Euler problem before tonight work (right, I’ll work late in my office). Using names.txt (right click and ‘Save...

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Project Euler — problem 23

Officially, it’s weekend. I’m solving this 23rd Euler problem just before my supper. A perfect number is a number for which the sum of its proper divisors is exactly equal to the number. For example,...

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Project Euler — problem 24

It’s a lovely day. I took a walk around the campus after lunch. The scene was enjoyable in one deep autumn day. Before the afternoon work, I’d like to spend a few moments on the 24th Euler Problem. A...

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