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alepper

Re:KiCad: A commitment to freedom on Saturday October 15, 2016 @07:30AM (#12713593)
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.
Re:The researcher programmer, a new species? (2012) on Monday February 15, 2016 @08:25AM (#11103228)
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

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/

Re:On the orientation of Roman towns in Italy (2007) [pdf] on Thursday August 20, 2015 @09:24AM (#10091644)
> 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.

Re:C++ concepts support merged into GCC trunk on Friday August 07, 2015 @07:31AM (#10021870)
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.
Re:A deep look at BIND9 CVE-2015-5477 on Tuesday August 04, 2015 @10:34AM (#10003604)
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.
Re:Intel 80386 Reference Programmer's Manual on Wednesday July 22, 2015 @05:47PM (#9932554)
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...

Re:Computational Hydrographic Printing [video] on Saturday May 09, 2015 @01:16PM (#9516952)
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

Re:Pure Python Vim clone on Sunday April 26, 2015 @10:01PM (#9444072)
You might find (Typed) Racket interesting - it offers the features you mention, and is a delight to work with.
Re:New GPU Optimized EC2 G2 Instance, the G2.8xlarge on Friday April 17, 2015 @12:57PM (#9395592)
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...

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

Re:The Lost Art of C Structure Packing on Wednesday February 18, 2015 @11:46AM (#9069432)
No, the standard requires they appear in their order of declaration.
Re:How Your Camera Works on Wednesday February 11, 2015 @07:55AM (#9032545)
Re:Triple-E Ship Leaves Port With World Record Load on Tuesday August 19, 2014 @06:31PM (#8200182)
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.
Re:Fail2ban security update on Thursday July 17, 2014 @07:07PM (#8050757)
http://www.routeviews.org provides access to live and snapshot BGP data.
Re:Euclid: The Game on Friday June 20, 2014 @12:36PM (#7921439)
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/

Re:Corecursion on Thursday May 08, 2014 @07:33PM (#7718380)
Try sketching the call graph of e.g. fibonacci 5.
Re:Parallax effect using motion detection on Tuesday April 01, 2014 @04:12PM (#7511330)
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?
Re:Understanding IP, TCP, and HTTP on Saturday March 08, 2014 @06:40AM (#7364929)
Julia Evans at http://jvns.ca has a distinctive style that I enjoy.
Re:Why I'm Done With Social Media Buttons on Thursday February 13, 2014 @03:48PM (#7234207)
> Does anyone remember what it was called?

Accelerators? http://ie.microsoft.com/activities/en-en/Default.aspx

Re:IPv6 domain readiness tester on Sunday February 09, 2014 @03:45PM (#7207138)
Looks like: IPv6 addresses for NS (nameserver) and MX (mail exchange) records, and root and www subdomain. Looks to check DNS responds to queries over IPv6, too. Easy mode to get at least four stars: enable IPv6 with a free Cloudflare account.
Re:Show HN: Ridiculously cheap bulk geocoding on Tuesday January 21, 2014 @12:44PM (#7096847)
I used it to take a contact database for a series of seminars around the country and allocate participants to the geographically-appropriate venue.
300,000,000 / 7,000,000,000 = 3 / 70, or a little less than half (3.5 / 70) of 10% (7 / 70). About 4%.

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