alepper

10 lat temudiscuss

Does this definitely extend to UK academics? They mention a .edu address is required, and I didn't hear back after applying with a .ac.uk address.

alepper

10 lat temudiscuss

If you're based in the UK and interested in research software, you might want to look into 'The UK Community of Research Software Engineers'[1] and The Software Sustainability Institute[2]. From what I've seen, the latter in particular are exploring pragmatic ways to make software engineering more compatible with the expectations (e.g. citations) of academic employers.

[1] http://www.rse.ac.uk [2] http://www.software.ac.uk

alepper

11 lat temudiscuss

I'm looking at something similar at the moment, but in agricultural areas where line-of-sight is inhibited only by foliage and terrain. For my purpose, it's OK to collect an SD card every so often, but I've toyed with the idea of an ESP8266 and a directional antenna to e.g. a mobile broadband router, probably again with an antenna upgrade.

Earlier today, I found [1] which - amongst other things which you might be interested in - calls out a venture [2] to establish a network of 'citizen scientist' type flood sensors across the UK. Their scheme looks to be a network of radio-to-Internet gateways which support a number of independently-deployed sensor nodes.

[1] http://oomlout.co.uk/blogs/news/81763329-an-overview-of-ardu... [2] http://flood.network/

alepper

11 lat temudiscuss

> I hope the published version in 2008 had it

The published version has headings: Latitude, Latin name, Modern name and date of Roman foundation, Axis, Amplitude at solstice, Published research. Still no map, though.

alepper

11 lat temudiscuss

Constraints on template types are useful outside of metaprogramming proper. For example, the standard library already specifies classes of iterators dependent on e.g. the direction(s) in which they may be advanced.

alepper

11 lat temudiscuss

n.b. it's a double-pointer. The /called/ code probably allocates a dns_name_t itself, updating the /callee's/ pointer. If the callee's pointer isn't NULL, there's a chance overwriting it will cause a memory leak (as the caller may no longer have a reference to whatever it was pointing to). The comment acknowledges that it's perhaps unnecessarily strict.

alepper

11 lat temudiscuss

I got a free copy of the lot back around 2003, but when I looked recently they've officially switched to printing on demand (priced at ~cost) via Lulu. I first got them for hobbyist operating system development - their residual utility there should remain high for a while. Plus, bookshelf cred!

http://www.intel.co.uk/content/www/uk/en/processors/architec...

alepper

11 lat temudiscuss

From the paper[1], it sounds like the same linear motion with the film wrapping around to the top:

    > The sphere is dipped with
    > its north pole pointing downward. The maximum error on the
    > northern hemisphere is within 2mm. However, near its south pole
    > the error is much larger (about 5mm). This is because after the
    > water surface passes the sphere’s equator, the film gets stretched
    > largely, and near the south pole the relative angle between the
    > water surface and the object surface approaches to 180◦, leading
    > to an ill-posed boundary condition for our simulation (recall
    > Equation (1), when θ ≈ 180◦).

You can see the potential for a similar wraparound even on e.g. the mask dips.

[1] http://www.kunzhou.net/2015/hydrographics.pdf

alepper

11 lat temudiscuss

You might find (Typed) Racket interesting - it offers the features you mention, and is a delight to work with.

alepper

11 lat temudiscuss

I have this kicking around from some experiments a month or two ago:

    sudo apt-get update
    sudo apt-get install build-essential linux-image-extra-virtual
    sudo reboot
    echo options nouveau modeset=0 | sudo tee -a /etc/modprobe.d/nouveau-kms.conf
    cat > /etc/modprobe.d/blacklist-nouveau.conf
    blacklist nouveau
    blacklist lbm-nouveau
    options nouveau modeset=0
    alias nouveau off
    alias lbm-nouveau off
    <Ctrl+D>
    sudo update-initramfs -u
    sudo reboot
    sudo apt-get install linux-headers-$(uname -r)
    wget http://uk.download.nvidia.com/XFree86/Linux-x86_64/346.35/NVIDIA-Linux-x86_64-346.35.run
    chmod +x NVIDIA-Linux-x86_64-346.35.run
    sudo ./NVIDIA-Linux-x86_64-346.35.run
    nvidia-smi -q | less

This is obviously not production-ready, and is heavily cribbed from online (I couldn't quickly re-find where) but is good enough if you just want to play.

EDIT: I think this was the original: http://ubuntuhandbook.org/index.php/2015/01/install-nvidia-3...

alepper

11 lat temudiscuss

You're right, sorry. I responded to 'why round?' but missed that comment.

alepper

11 lat temudiscuss

The clue's here:

> What is the `uniform' distribution we want, anyway? It is obviously not the uniform discrete distribution on the finite set of floating-point numbers in [0, 1] -- that would be silly. For our `uniform' distribution, we would like to imagine[*] drawing a real number in [0, 1] uniformly at random, and then choosing the nearest floating-point number to it.

Because of the logarithmic representation, there are as many floating point numbers between .25 and .5 as there are between .5 and 1. If you uniformly sample numbers with an exact, finite floating point representation then you don't get something that 'looks like' a uniform distribution of real numbers in [0, 1] -- which is more likely what was wanted.

alepper

11 lat temudiscuss

No, the standard requires they appear in their order of declaration.

alepper

11 lat temudiscuss

Correct link: http://graphics.stanford.edu/projects/camera-2.0/

alepper

12 lat temudiscuss

Relatedly, 'The Box: How the Shipping Container Made the World Smaller and the World Economy Bigger' is a great little book. I don't see sense in retreading existing reviews, but I think it would offer something of interest for many in this crowd.

alepper

12 lat temudiscuss

http://www.routeviews.org provides access to live and snapshot BGP data.

alepper

12 lat temudiscuss

From the icons, it looks like this may be using Geogebra[1] under the hood. It's a really polished little tool for exploring geometry.

[1] http://www.geogebra.org/cms/en/

alepper

12 lat temudiscuss

Try sketching the call graph of e.g. fibonacci 5.

alepper

12 lat temudiscuss

I'm curious - it seems a little around-the-houses to have to use an approximation to erf when it's not obviously relevant. Why not just use an alternative sigmoid (e.g. the logistic function) or whatever the trigonometric solution falls out to be if you model it as a 'real' slewing or rotation motion around the scene?

alepper

12 lat temudiscuss

Julia Evans at http://jvns.ca has a distinctive style that I enjoy.

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[She] met Alexander Grothendieck on January 2, 2012 [pdf]

Gadget 'allergy': French woman wins disability grant

Why 72% of Codecademy Users Never Finished

Inferno Part 0: Namespaces

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An Open Letter to Scientific American and Why You’ve Lost a Reader

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