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What is the rationale for all comparisons returning false for IEEE754 NaN values?
...etic type that satisfies all of the properties of real arithmetic that we know and love. The 754 committee has to decide to bend or break some of them. This is guided by some pretty simple principles:
When we can, we match the behavior of real arithmetic.
When we can't, we try to make the violat...
R and version control for the solo data analyst
...e this applies to you, but it would have made our clients very nervous to know that every version of every script that we had ever produced was potentially discoverable. We used version control for code modules that were reused in multiple engagements, but did not use version control for engagement...
Reference: mod_rewrite, URL rewriting and “pretty links” explained
...at resources to get started:
Serverfault: Everything you ever wanted to know about mod_rewrite
(Keep in mind to remove the slash in ^/ pattern prefixes for .htaccess usage.)
Do's and Dont's in Hidden features of mod_rewrite.
Look through our most popular mod-rewrite questions and answers.
Apache ...
addEventListener vs onclick
...n that perspective, binding events from javascript would be best practice. Nowadays, I don't think many people worry too much about progressive enhancement, especially not considering the prevalence of stuff like Angular. There's still some separation of concerns arguments about inline events (not u...
What is N-Tier architecture?
...rs being presentation tier - service tier - integration/data tier. Do you know if these are just different words for the same thing as the architecture shown above or something different? As far as my knowledge goes, they seem the same but I would like to make sure.
– Kayleigh...
What is the difference between up-casting and down-casting with respect to class variable
...g) animal;
Basically what you're doing is telling the compiler that you know what the runtime type of the object really is. The compiler will allow the conversion, but will still insert a runtime sanity check to make sure that the conversion makes sense. In this case, the cast is possible because ...
Why is MATLAB so fast in matrix multiplication?
...lementation of BLAS routines which were more and more efficient.
I don't know all the historical implementations (I was not born or a kid back then), but two of the most notable ones came out in the early 2000s: the Intel MKL and GotoBLAS. Your Matlab uses the Intel MKL, which is a very good, optim...
Disadvantages of Test Driven Development? [closed]
...ming to an interface, MVC/MVP patterns etc., which again require a lot of knowledge, and... you have to write even more code.
So be careful... if you don't have an enthusiastic team and at least one experienced developer who knows how to write good tests and also knows a few things about good archi...
What's the _ underscore representative of in Swift References?
...ction without an external name.
Update for Swift 2.0
Function and method now work the same way in terms of local and external argument name declaration.
Functions are now called by using external parameter name by default, starting at 2nd parameter. This rule only applies to pure Swift code.
So,...
How to solve error “Missing `secret_key_base` for 'production' environment” (Rails 4.1)
... But, i has no effect, when I restarting Unicorn. The only way, that works now, is pasting it directly to secrets.yml
– AntonAL
Nov 17 '14 at 20:37
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