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Comment Re:Here is what's wrong with Apple: (Score 1) 487

Their own words:

"We don't want people to have to focus on bits and bytes and feeds and speeds. We don't want people to have to go to multiple [systems] or live with a device that's not integrated."

This is like a car manufacturer saying "we don't want people to focus on horsepower or cylinder volumes or top speeds" Sheesh.

Not quite. Google "feed and speed" and see what comes up. They are terms from machining that involve configuring tooling to get a job done. If you want to turn or mill a piece of metal, you can't just throw it on a machine, hit a button, and everything just works. You need to know the proper feed rate and spindle speeds to use. These depend on several factors, including the material being machined, the type of cutting tool (carbide vs high speed steel), dimensions of the material and tooling. Cook is saying that Apple likes to hide all that from the user so they can just get the job done.

Comment Re:I'll fine one right now (Score 5, Interesting) 117

Not a rigorous proof, but here's my favorite explanation:

for any positive integer k, the binary representation of 2^k-1 consists of k 1's. If k is even, this is an even number of 1's lined up together. Since 3 is 11 in binary, you can divide 2^k-1 by 3 and get a quotient of the form 10101..01.

e.g. 2^10 = 1111111111=11(101010101)

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