Posts Tagged 'metrics'

Nike+ FuelBand: A Jawbone UP That Actually Works?

I was pretty happy that I held off purchasing a Jawbone UP wristband because users have reported massive failures. Since then, Jawbone has had to offer full refunds to anyone who made a claim. The Nike FuelBand reminds me of the UP, but unlike the UP it might actually work. Plus, it looks much cooler.

nike fuelband 01

Read more @ Technabob

Compactification and Metrisation

Some great notes from Dr. Terence Tao’s lecture on compacity and metric spaces.

Metric spaces are sets with a measure of distance between each of its elements. Compact spaces are spaces in which each sequence (xn) admits a converging sub-sequence. This is called the Bolzano-Weierstrass property and such compact spaces are called sequencially compact. There is a more general way of defining a compact space, by saying that each of its open covers has a finite subcover.


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ranjitwithkinginbehand.jpgI'm Range, your host. On the menu, photos, art, stories, entertainment and reviews. Links, maths, education and social issues. I'm in Quebec (Canada) or Taiwan (R.O.C.). Follow me on Twitter.

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