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Comment: Re:Good for science and engineering, too (Score 1) 318

by 644bd346996 (#36044500) Attached to: Hewlett Packard's Cult Calculator Turns 30

I'm fairly well-versed in interactive use of MATLAB and ipython/numpy/scipy. I also have an HP-50g next to my monitor, with the USB cable plugged in so I don't need to keep replacing the batteries every few months.

Generally speaking,

I use ipython if :
- the problem has a significant non-mathematical component (string processing or some other general-purpose programming language task), or
- I want good looking 3d graphs

I use MATLAB if:
- I need to plot a bunch of things (2d), or
- the problem is almost entirely linear algebra

I use the 50g if:
- the problem is short enough to quickly write on paper, or
- the programming only requires a handful or short routines, or
- neither of the above programs is running, and the problem won't take more than a minute or two to type in and run on the 50g

There's a strong inverse relationship between the power of a calculating tool and it's usability. For really short stuff with only one or two variables, the ergonomically-ideal 15c is much much quicker than the clumsy notation of numpy. The 50g, with it's math-optimized keyboard and GUI, is often much faster than either desktop option because the bottleneck is the typing process, not the computation process.

Comment: Re:15c (Score 1) 318

by 644bd346996 (#36044394) Attached to: Hewlett Packard's Cult Calculator Turns 30

So, it doesn't have a physical keyboard, it's slower for all but the most complex operations that a 12c or 15c can do, it gets 1/1000th the battery life, and it has a monthly fee. Sounds great.

It's really a perfect illustration of the downside to device convergence. Your smartphone is jack of all trades, master of none. The 15c, on the other hand, has very little room for improvement: the screen contrast, battery life, and execution speed could be improved, and the price could be lower. The rest of it is basically perfect, and couldn't be improved without seriously compromising another feature. (eg. it could support more functions, but only by compromising the usability significantly.)

Comment: Re:Not all that surprising (Score 1) 120

by 644bd346996 (#35979736) Attached to: Nvidia and AMD Hug It Out, SLI Coming To AMD Mobos

Nowadays, you can actually force ICC to emit code that will use up to SSSE3 on AMD CPUs, but only if you don't use runtime code-path selection. (More specifically, you have to tell ICC that the least-common-denominator code path should use SSSE3, which defeats the purpose of runtime code-path selection. ICC will always choose the slowest available code path for an AMD CPU, but you can prevent it from including a non-SSE code path.)

Comment: Re:Seems a smart move (Score 1) 120

by 644bd346996 (#35979698) Attached to: Nvidia and AMD Hug It Out, SLI Coming To AMD Mobos

For the hardcore gamers who don't have unlimited budgets, it might be logical to buy the cheapest CPU that won't bottleneck your games, and pair it with the fastest graphics cards you can afford. Particularly if your games can use the GPU for the physics engine, you might not need even AMD's high-end CPUs to keep a pair of NVidia cards busy.

Comment: Re:Domination (Score 0) 198

by 644bd346996 (#35468382) Attached to: China Switching To Home-Grown Chips For Supercomputers

If a company like Intel is still making big mistakes like the Sandy Bridge chipset problem, what reason is there to believe that there will still be a correlation between design flaw frequency and experience if everyone under discussion has at least a few years and more than one product cycle under their belt? Do you really think that anybody who was at Intel during the 1980s is helping them prevent design flaws?

Comment: Re:Dont mean to sound selfish (Score 1) 752

by 644bd346996 (#35462866) Attached to: Nuclear Emergency Declared At 2 Plants In Japan

If all they get is a molten pool of radioactive lava, they'll be much better off than Chernobyl: there, the graphite moderator of the reactor caught fire and helped spread fallout far and wide. A pool of radioactive lava is only problematic while it's still too hot to build a new containment building around.

Comment: Re:All Exploits (Score 4, Informative) 266

by 644bd346996 (#35048148) Attached to: Sony Sends DMCA Takedown Notice To GitHub

According to the law at issue, the only portion of a DMCA takedown notice that is under penalty of perjury is that the person filing it is authorized to act on behalf of the copyright owner alleging infringement.

For a DMCA takedown counter-notice, the poster needs to assert under penalty of perjury that they have a good faith belief that the takedown was a mistake or misidentification. The lack of a requirement that the party issuing the takedown make a similar statement of belief under penalty of perjury is the real bullshit here, as it violated the principle of equal protection under law.

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