大约有 14,600 项符合查询结果（耗时：0.0391秒） [XML]
Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
...more here http://www.intel.com/products/processor/manuals/. I'd suggest to start from reading about processor functions you are using, there are some info, especially about rsqrt (cpu is using internal lookup table with huge approximation, which makes it much simpler to get the result). It may seem,...
Most efficient way to create a zero filled JavaScript array?
...
Well, I started testing it with multi dimensional arrays and it seemed to greatly speed up my test cases. Having just now done some more testing on FF41 and Chrome45.0.2454.99 m. Yes, I guess I really needed more space to explain mys...
How to write a Python module/package?
... make a Python wrapper for a REST API. I have absolutely no idea on how to start and I need help.
7 Answers
...
Which comment style should I use in batch files?
... the comment will be removed when the macro is defined.
set $test=(%\n%
%=Start of code=% ^
echo myMacro%\n%
)
share
|
improve this answer
|
follow
|
...
Backing beans (@ManagedBean) or CDI Beans (@Named)?
I've just started reading through Core JavaServer Faces, 3rd Ed. and they say this (emphasis mine):
5 Answers
...
What is Normalisation (or Normalization)?
...led flattened) used in performance critical applications.
My advise is to start with good degree of normalisation and only do de-normalisation when really needed
P.S. also check this article: http://en.wikipedia.org/wiki/Database_normalization to read more on the subject and about so-called norma...
Are soft deletes a good idea? [duplicate]
...ng is fairly trivial; it's the accumulation of lots of trivial things that starts to cause problems. As I said in my last sentence, I would expect a developer to have a good reason for increasing the complexity of the system in this way. I'm disappointed but not at all surprised to see so many devel...
R script line numbers at error?
... R), call the main script in batch mode using Rscript myMainScript.R. This starts a new non-interactive R session and runs the script myMainScript.R. The code snippet given in step 1 that has been placed at the top of myMainScript.R sets the error handling option for the non-interactive R session.
E...
Why does the 260 character path length limit exist in Windows?
...ws 10. you can remove the limitation by modifying a registry key.
Tip Starting in Windows 10, version 1607, MAX_PATH limitations have been removed from common Win32 file and directory functions. However, you must opt-in to the new behavior.
A registry key allows you to enable or disable th...
Does order of where clauses matter in SQL?
... as well as it could or (2) It's a compile-time error and SQL doesn't even start to try to compare anything, bailing out preliminary. My guess is that it's nr. 2.
– Louis Somers
Nov 24 '17 at 8:47
...