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What do 'real', 'user' and 'sys' mean in the output of time(1)?
... mode - things like allocating memory or accessing hardware (HDD, network, etc.). These are under the supervision of the kernel, and it alone can do them. Some operations like malloc orfread/fwrite will invoke these kernel functions and that then will count as 'sys' time. Unfortunately it's not as s...
How exactly does the callstack work?
...de a frame appropriately to optimize their alignment so the processor can fetch them as quickly as possible. The crucial fact is that the offset of the variables relative to some fixed address is constant throughout the lifetime of the frame - so it suffices to take an anchor address, say, the addre...
In Python, how do I determine if an object is iterable?
... What if some_object throws TypeError caused by other reason(bugs etc.) too? How can we tell it from the "Not iterable TypeError"?
– Shaung
Sep 13 '11 at 7:34
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How to calculate moving average using NumPy?
... to a particular technical discipline (e.g., scikits-image, scikits-learn, etc.) Several of these were (in particular, the awesome OpenOpt for numerical optimization) were highly regarded, mature projects long before choosing to reside under the relatively new scikits rubric. The Scikits homepage li...
multi-step registration process issues in asp.net mvc (split viewmodels, single model)
... I found an issue whereas I didn't name my views Step1, Step2, etc... Mine are named something more meaningful, but not alphabetical. So, I ended up getting my models in the wrong order. I added a StepNumber property to the IStepViewModel interface. Now I can sort by this in the Init...
What are the most interesting equivalences arising from the Curry-Howard Isomorphism?
...u had first-order features, there would be a kind other than *, * -> *, etc.; the kind of elements of the domain of discourse. For example, in Father(X,Y) :- Parent(X,Y), Male(X), X and Y range over the domain of discourse (call it Dom), and Male :: Dom -> *.
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HTML5 best practices; section/header/aside/article elements
...its containing element: who wrote it, copyright, links to related content, etc. Whereas we usually have one footer for an entire document, HTML5 allows us to also have footer within sections.
Source: https://clzd.me/html5-section-aside-header-nav-footer-elements-not-as-obvious-as-they-sound/
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How to update Python?
...tall over top, does it retain the external modules like pygame, bs4, lxml, etc. which I downloaded?
– user3917838
Sep 13 '15 at 15:59
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Hash collision in git
... as well as the hash of the tree, the author, the hashes of parent commits etc. However, as @Steve points out, small things are less likely to collide, and a commit is a small thing.
– cdyson37
Mar 3 '15 at 13:12
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Expand a random range from 1–5 to 1–7
...nite decimal 0.15151515..., so we will produce as output 1, 5, 1, 5, 1, 5, etc.
Ok, so we have the main idea, but we have two problems left: we can't actually compute or store an infinitely precise real number, so how do we deal with only a finite portion of it? Secondly, how do we actually conver...