gugagore

47 ms·

601.
by gugagore 7y ago
And ooo-execution that happens at _runtime_.
602.
by gugagore 7y ago
You're saying a lot of wrong things about CPUs. CPUs do execute instructions "out-of-order", and they do speculative execution and rollback and have another go. Branch prediction is an example. All of this is possible only wi
603.
by gugagore 7y ago
That's interesting information, thanks. Probably a smaller plane takes less time to taxi, take off, land, etc. Still it seems like if you increase significantly the number of flights in and out of an airport, you'll run into some
604.
by gugagore 7y ago
If you're interested in being so logical, you should logically justify: > Refusing to take money from someone is a form of ostracism. Or do we take it just as an axiom? Refusing to accept someone's money in exchange for a good
605.
by gugagore 7y ago
I misinterpreted the comment to mean a 2D reflection is a 3D rotation, in general. Thanks for pointing out the comment was about this specific case.
606.
by gugagore 7y ago
This is what I meant by "registration", for the case when the subject isn't changing.
607.
by gugagore 7y ago
No, that's not right. You can't rotate your left hand to look like your right. But they are reflections of each other.
608.
by gugagore 7y ago
Averaging N images should (roughly?) make the noise go down by sqrt(N), so long as you don't introduce more sources of noise during collection. So the camera would have to be still, or the images registered to a common perspective.
609.
by gugagore 7y ago
"Honestly, the quality is probably on par with a 40 year old digital camera. On the other hand, it hopefully means that in about 40 years we will have GoPro’s with this capability strapped to our helmets showing us what’s around the co
610.
by gugagore 7y ago
You would probably need to use sensing to improve stabilization there. The output of the approach here is just a position (I'm assuming) trajectory. They manage to do that because they have a good enough model of the beams and masses.
611.
by gugagore 7y ago
Two beefy ones in parallel don't really solve the problem. If you leave your 1-Amp (probably a gross underapproximation) headlights on over the course of ~200 hours, you'll deplete the battery.
612.
by gugagore 7y ago
Do you know that this has happened specifically around touchscreens, or is this a more general observation?
613.
by gugagore 7y ago
I can't really make sense of the bandwidth (information rate) of a tactile interface. A measure in units of length would make more sense to me.
614.
by gugagore 7y ago
It would require multi-touch displays. I have no idea how ubiquitous those are these days, but I know most touchscreens interfaces in my life have not supported it.
615.
by gugagore 7y ago
I imagine the star trek interact can really apply arbitrary forces. So you can simulate a knob for example. Not just a tactile sensation when you're already in (near) contact with the interface.
616.
by gugagore 7y ago
I wonder if it's much easier to process the signal (at the level of measuring and interpreting the capacitances) if you assume a one-dimensional user input. I'm not sure what signal processing happens when sliding on a touchscreen
617.
by gugagore 7y ago
Regarding message passing, it seems that everything you said applies to a microservice architecture. Yet people do it in hopes of scalability.
618.
by gugagore 7y ago
Up until around five years ago, the course 6.034 had a Fall version and a Spring version. They were substantially different. In the Fall it was taught by Patrick Winston, and in the Spring it was taught by other professors who were 10-20 ye
619.
by gugagore 7y ago
It's not the same channel, because DSL requires equipment fairly close to the subscriber. You can't transmit DSL on telephone utility poles for miles, like you can dialup.
620.
by gugagore 7y ago
Unfortunately I used bandwidth informally (how most people use it), to mean something measured in bits per second, not Hertz. You're absolutely right that SNR plays a role. But I don't see why you need to map to symbols.
621.
by gugagore 7y ago
No it doesn't rely on symbols. You have a piece of copper and circuitry between your house and your ISP. Back in the day, there was no digital processing. It's just copper, amplifiers, filters, and mechanical switches. Why did dia
622.
by gugagore 7y ago
There's another way that or_English is different, as illustrated by this frustrating "joke": 1: do you think it's A or do you think it's not A? 2: yes (assigning a truth value to the or expression rather than indica
623.
by gugagore 7y ago
It's a cop+out, but I feel pretty sure that (if I understand your curiosity) it's both a curse and a blessing. Those are probably two different ways to frame the feelings you have around your curiosity. I'm sure there are man
624.
by gugagore 7y ago
Is that a saying? Lots of critical systems use floating point numbers.
625.
by gugagore 7y ago
The same thing happened with thunderbolt/mini display port. Different cables have different capabilities, even though all them use the same connect
626.
by gugagore 7y ago
Timing here refers to a design consideratiob, e.g. how fast can the clock go before a logic bit at the output of one unit gets misinterpreted as the opposite level on the input of another unit. That depends on the layout of the design, how
627.
by gugagore 7y ago
What is eps^3? ;) You have to turn that into some representation on the computer before you can even pass it to cuberoot.
628.
by gugagore 7y ago
I don't think this is right. An autodiff package will likely report +inf for the derivative of cuberoot at 0. The problem is really that there are a lot of ways the function can have infinite slope. The sqrt function also has infinite
629.
by gugagore 7y ago
Did you try taking the derivative of y = cuberoot(x^3) at 0? If it works fine, tell me your secret!
630.
by gugagore 7y ago
You will have to put a bit of work into thinking about it, if you don't already see it. At the risk of being more rude than effective, I spelled it out pretty clearly above if you understand autodiff, which requires an understanding of

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