大约有 5,215 项符合查询结果(耗时:0.0337秒) [XML]
Is it possible to use argsort in descending order?
...ns, 1000000 loops each)
>>> timeit avgDists.argsort()[::-1][:n]
1.64 µs ± 3.39 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
>>> timeit avgDists.argsort()[-n:][::-1]
1.64 µs ± 3.66 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
For larger arrays...
Generating Guids in Ruby
...("some-random-string")[8..16]
=> "2ebe5597f"
>> SecureRandom.base64(8).gsub("/","_").gsub(/=+$/,"")
=> "AEWQyovNFo0"
>> rand(36**8).to_s(36)
=> "uur0cj2h"
share
|
improve th...
What do 'real', 'user' and 'sys' mean in the output of time(1)?
...e <stdio.h>
#include <stdlib.h>
#include <unistd.h>
uint64_t niters;
void* my_thread(void *arg) {
uint64_t *argument, i, result;
argument = (uint64_t *)arg;
result = *argument;
for (i = 0; i < niters; ++i) {
result = (result * result) - (3 * result) + 1...
How to prevent favicon.ico requests?
.... I tested Safari, Chrome and Firefox:
<link rel="icon" href="data:;base64,=">
I left out the "shortcut" name from the "rel" attribute value since that's only for older IE and versions of IE < 8 doesn't like dataURIs either. Not tested on IE8.
UPDATE 2:
If you need your document to validat...
C# vs C - Big performance difference
...h the native operation mode of the FPU and SSE instruction set on x86 and x64 processors. No coincidence there. The JITter compiles Math.Sqrt() to a few inline instructions.
Native C/C++ is saddled with years of backwards compatibility. The /fp:precise, /fp:fast and /fp:strict compile options ar...
Is there a way to crack the password on an Excel VBA Project?
... Excel 2013 - 32 bit version
Excel 2016 - 32 bit version
Looking for 64 bit version? See this answer
How it works
I will try my best to explain how it works - please excuse my English.
The VBE will call a system function to create the password dialog box.
If user enters the right passwor...
Installing Java on OS X 10.9 (Mavericks)
...
GuyGuy
11.2k55 gold badges4646 silver badges6868 bronze badges
...
After Installing Java JDK 7 For Mac OS X - mvn -version still shows java version 1.6.0_31
...
Mahmoud AdamMahmoud Adam
5,26455 gold badges3333 silver badges5959 bronze badges
...
ng-model for `` (with directive DEMO)
...ulate your model with the contents of your file encoded ad a data-uri (base64).
Check out a working demo here:
http://plnkr.co/CMiHKv2BEidM9SShm9Vv
share
|
improve this answer
|
...
How to avoid overflow in expr. A * B - C * D
...
Both long long and double are 64 bits. Since double has to allocate some bits for the exponent, it has a smaller range of possible values without loss of precision.
– Jim Garrison
Nov 5 '12 at 19:03
...