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Comment: Re:It's that twat with the upside down head again. (Score 5, Informative) 157 157

Some of the confusion is that the original description is defined recursively in a way that 'c' only shows up once, and the initial value is not c. z[i] = z[i-1]^2+c. But because z[0] is defined = 0, you can effectively rewrite the sequence in terms of just 'c' starting from the second. The downside is that at first it might LOOK at first glance like the previous term is being added, which is why I like the recursive form.

Also, by not starting from 0 you miss out on a cool connection: for a given fixed C, the graph of convergence for non-zero choices of z[0] over the complex plane gives you a Julia Set. With the neat property that Julia Sets from C inside the Mandelbrot set are fully connected and Julia Sets from C outside the Mandelbrot Set are sparse disconnected Cantor spaces.

Comment: Re:Same Thing Almost Happened to Me (Score 1) 536 536

But what objective did they achieve? They didn't get a new customer in him. They created headache and strife out of incompetence that didn't gain themselves anything in the process. If anything, telling him the truth would have caused him to look elsewhere for a home and become a (happier) customer all the faster.

Comment: Re:Well duh (Score 2) 420 420

And the guy who sits next to those other people you are constantly coordinating and discussing issues with? The guy who needs to concentrate hard on a one-man project? He is freaking hating it, and by extension, you. Headphones don't eliminate all distraction cues. And you know what? You'd still be able to do your collaboration shtick in cubicles or offices by walking up to folks when you need to.

Open plan might work for some places, but its a fad being adopted by managers following trends without evaluating if they truly make sense for their shop.

Comment: Re:Heat gun (Score 3, Informative) 304 304

That depends on the board design. If the MoBo designer didn't balance the copper density well top-to-bottom it will warp the whole damn thing as if it were a thermostat. Technical term is "potato chip-ing" the board. Seeing as how the initial problem occurred under temperature loads bad design isn't outside the realm of the possible. Or they cheapped out and used thinner copper layers that didn't spread the heat evenly enough laterally. (Though as others have pointed out it may be something INSIDE the chip packages not the MoBo. Also 340F isn't enough to melt solder, particularly lead-free.)

Comment: Re:So... (Score 1) 282 282

No, we should make our acceptance of [the existence of] the problem not be conditioned on (proposed) solutions. You are free to propose other solutions, and the choice of _which_ solution often politics and opinion. It's a variation of "everyone is entitled to their own opinion, not their own facts."

Comment: "Waste" (Score 3, Insightful) 71 71

While I find the 3d printing damn cool, the editorializing about the waste struck me as an odd comment for subby to make. I'm guessing that a lot of powder gets left over by this new process just as milling from a solid block leaves shavings. But those should be just as easily melted down and recycled in the next job, so not really wasted. (And if they are thrown away, it means that reusing them just isn't economical, so the 'waste' isn't that valuable anyway.)

I think the better argument where 3D wins is the ability to get arbitrary shapes that could be impossible to make with traditional machining or casting.

The early bird who catches the worm works for someone who comes in late and owns the worm farm. -- Travis McGee

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