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Comment Re:Error My Ass (Score 1) 1005

Wikipedia says that the boxer linked to above is 6'3", and the other link says that "In the modern era, middleweight means that the fighter's official weight does not exceed 160 pounds."

But all of that is beside the point. Using height and weight to determine how well someone can fight is like using clock speed to determine how fast a computer is.

Comment Re:Neat! (Score 2) 191

They have 13$ arduinos.

If you're making more than one device you can go even cheaper if you just buy a bare ATMega328 + a couple of cheap components. Granted, you also need a USB to TTL cable which is another $20 or so, but you only need one of those.

Comment Re:Are you a salesman? (Score 2) 514

This is not quite equivalent to the TSP. TSP tries to find a minumum weight hamilton cycle, which does not allow repeated vertices. In the problem here, they are allowing vertices to be repeated, but they are trying to minimize the number of repeats. Also, the graph obtained by overlaying the triangular grid might not be hamiltonian.

That said, I suppose you could translate an instance of this problem to the TSP by doing something like adding weighted edges between nonadjacent vertices, and letting the weight of each new edge uv be the distance between u and v in the original triangular graph.

Comment Monopolistic advantage. (Score 1) 187

Different carriers are better in different areas of the country. Anecdotally, in my experience AT&T is great in the southeast and Sprint sucks. In Northern VA it's the opposite.

Since the iPhone is only available with AT&T, some people who would go with a superior carrier in their area will opt to go with less-desirable AT&T because they want the iPhone. Those who want a different phone or don't care about their phone's brand are going to tend to go with the better carrier, and the data will reflect all of this.

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