jperras

20 ms·

151.
by jperras 9y ago
We use nanopb on embedded devices; it's quite small & efficient. No real complaints.
152.
by jperras 9y ago
General relativity is, fundamentally, the study of the metric tensor: it is the object that connects the geometric representation of space and time with mass and energy. Different metric tensors can produce wildly different results, from fl
153.
by jperras 9y ago
The closest thing I can think of is [Geant4]( https://en.wikipedia.org/wiki/Geant4 ), which is a monte carlo-based particle simulator. It doesn't have facilities to work with geometric models of spacetime, of course
154.
by jperras 9y ago
> That scenario troubles my perfectionistic mindset, but I have to say in all my apps it is not the end of the world. I run into this all the time anyway on other people's websites, major and minor: whether I'm paging through s
155.
by jperras 9y ago
Why do we have shell commands called `cp` and `mv` instead of just `copy` and `move`?
156.
by jperras 9y ago
Correct me if I'm wrong, but wouldn't a relatively benign way to fix this simply be that the TSA agents randomly reorient/flop some carry on luggage items in the bins before they go through the scanner?
157.
by jperras 9y ago
> A national grocery chain, probably has a similar amount of data ingestion and a similar analytics need. It's off-topic, but having interacted with national-level grocery chains before, I think you grossly over-estimate their techn
158.
by jperras 10y ago
Yes, I know it says that. It's a useless "fact". What highway in any place in the world would have something other than excessive speed (for conditions) as the leading cause of accidents? The only thing I can think of is land
159.
by jperras 10y ago
Your throwaway comment about freeway speeds is a bit odd, since there are verifiable instances that show that absolute speed is not the deciding factor in road fatalities. The most famous example, of course, is the German Autobahn: "
160.
PostgreSQL Tables Can Only Have 1600 Columns, Ever(nerderati.com)
4 points by jperras 10y ago|0 comments
161.
by jperras 10y ago
> She lives close by, in a house near the big Cadbury chocolate factory. I used to live right near there; the Cadbury factory is on Gladstone just north of Dundas street. If she owns that house with her husband, it's probably worth
162.
by jperras 10y ago
Fantastic analogy. Will be using this one in the future.
163.
by jperras 10y ago
> We assume that light speed is a constant, but we also know that speed is measured as distance/time. Correct. However, the crucial part that is missing from your thought process is that: 1) light can only travel in a "straight
164.
by jperras 10y ago
Axler's book, "Linear Algebra Done Right", is widely considered to be one of the best texts on linear algebra that focuses less on the mechanics and more on the structure of linear operators on vector spaces. http:/&#x2
165.
by jperras 10y ago
I think what he was getting at is: if so inclined, you can repair or replace your own clutch (as a hobbyist or someone who is mechanically inclined), but doing the same to a hydraulic-based automatic transmission or a CVT is a tall order un
166.
by jperras 10y ago
Hi. I do this all the time if I'm going to be stopped for more than 2-3 seconds.
167.
by jperras 10y ago
As a native Montréaler, this hit me really, really hard. The man was a legend, and hopefully his legacy will live on in the city. I'd really like to see McGill, our common alma mater, commemorate him in some way.
168.
by jperras 10y ago
IMO that's a terrible escape sequence.
169.
by jperras 10y ago
I've considered it, but I've spent the last ~10 years of my life learning and using Vim with esc ingrained into my brain. I've managed to retrain some combinations by sheer force of will and major effort, but I think I migh
170.
by jperras 10y ago
To be honest, my ratio is probably more like 750/hour, considering that I do 100% of my work in terminal windows, use nvim as my main code editor, use a tiling window manager (whose keybindings include escape for some sequences), use m
171.
by jperras 10y ago
I hit Esc without looking about 500 times a day. As does nearly every Vim user in existence, I imagine.
172.
by jperras 10y ago
> I suppose the next step would be to ban branding from tobacco packages so the only thing on the package is the warnings and images. We're already going in that direction here in Canada: https://www.thestar.com/news
173.
by jperras 10y ago
A variation of this taxation proposal exists and has been at work for several years in Ontario. While it is not a 100% taxation on the rise in value of the property, it is indexed to ~2% (for anything above $400,000) of the sale value. It&#
174.
by jperras 10y ago
> Firstly US does not dictate Canadian rates, sadly. Of course not, but 5 year-fixed rate mortgages are set according to the bond market, not BoC overnight rates. If interest rates set by the US Fed are high, then lenders are going to se
175.
by jperras 10y ago
> I happen to know what money laundering is, being a certified money laundering specialist (CAMS) and all One would hope that you are, in fact, a Certified Anti -Money Laundering Specialist, since what you initially labeled yourself as
176.
by jperras 10y ago
In my very anecdotal experience, the block that most consumer routers ship with as a configured default is, by far , 192.168.1.0/24 or 192.168.0.0/24. I've run across a handful of 172.*, but they were so exceptional that the
177.
by jperras 10y ago
Correct!
178.
by jperras 10y ago
Our site (fictivekin.com) made that list. I think we'd describe it more as intentinonal retro-minimalism instead of brutalist, but that's just me.
179.
by jperras 11y ago
To answer that question, you need to know a little bit about diffraction-limited systems in optics and the Rayleigh criterion. Essentially, point-like sources (the laser emitter array and the target can be considered point sources when on t
180.
by jperras 11y ago
It varies quite a lot from neighbourhood to neighbourhood, and of course proximity to major public transport ingress/egress points. I haven't looked recently, but I think you'd be hard pressed to find anything below $1000&#x2

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