大约有 46,000 项符合查询结果（耗时：0.0485秒） [XML]
Very large matrices using Python and NumPy
NumPy is an extremely useful library, and from using it I've found that it's capable of handling matrices which are quite large (10000 x 10000) easily, but begins to struggle with anything much larger (trying to create a matrix of 50000 x 50000 fails). Obviously, this is because of the massive memo...
iOS Remote Debugging
...ector
Connect your iDevice via USB with your Mac
Open Safari on your Mac and activate the dev tools
On your iDevice: go to settings > safari > advanced and activate the web inspector
Go to any website with your iDevice
On your Mac: Open the developer menu and chose the site from your iDevice...
mongo - couldn't connect to server 127.0.0.1:27017
I am coming from riak and redis where I never had an issue with this services starting, or to interact.
38 Answers
...
How can I open a cmd window in a specific location?
...
Try out this "PowerToy" from Microsoft:
Open Command Window Here
This PowerToy adds an "Open Command
Window Here" context menu option on
file system folders, giving you a
quick way to open a command window
(cmd.exe) pointing at the selected
folder.
EDIT : T...
Is there any WinSCP equivalent for linux? [closed]
...'re using Gnome, you can go to: Places -> Connect to Server in nautilus
and choose SSH. If you have a SSH agent running and configured, no password will be asked!
(This is the same as sftp://root@servername/directory in Nautilus)
In Konqueror, you can simply type: fish://servername.
per Mike R:...
How to change language settings in R
...env() function. My R session defaults to English, so I'll set it to French and then back again:
> Sys.setenv(LANG = "fr")
> 2 + x
Erreur : objet 'x' introuvable
> Sys.setenv(LANG = "en")
> 2 + x
Error: object 'x' not found
A list of the abbreviations can be found here.
Sys.getenv() g...
PDOException “could not find driver”
I have just installed Debian Lenny with Apache, MySQL, and PHP and I am receiving a PDOException could not find driver .
3...
How to remove focus around buttons on click
...
I found this Q and A on another page, and overriding the button focus style worked for me. This problem may be specific to MacOS with Chrome.
.btn:focus {
outline: none;
box-shadow: none;
}
Note though that this has implications for ...
Minimum and maximum value of z-index?
...r>) or
real number values (denoted by
<number>). Real numbers and
integers are specified in decimal
notation only. An <integer>
consists of one or more digits "0" to
"9". A <number> can either be an
<integer>, or it can be zero or
more digits followed by a ...
How to compare two NSDates: Which is more recent?
I am trying to achieve a dropBox sync and need to compare the dates of two files. One is on my dropBox account and one is on my iPhone.
...