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How do I install imagemagick with homebrew?
...nough to brew install Imagemagick. You have to also PECL install it so the PHP module is loaded.
From this SO answer:
brew install php
brew install imagemagick
brew install pkg-config
pecl install imagick
And you may need to sudo apachectl restart. Then check your phpinfo() within a simple php s...
Why is there extra padding at the top of my UITableView with style UITableViewStyleGrouped in iOS7
... I think this is the correct way of removing that padding, instead of tampering with edgeInset values.
– Hgeg
Nov 24 '13 at 17:18
...
Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue
...ansparency and luminosity, and only modifies the color of the image. For example:
becomes After doing some research, it appears that the ColorMatrixColorFilter class may do what I need, but I can't seem to find any resources pointing to how the matrix is used. It's a 4x5 matrix, but what I...
How can I have linebreaks in my long LaTeX equations?
...you can use split:
\begin{equation}
\begin{split}
first part &= second part #1 \\
&= second part #2
\end{split}
\end{equation}
Both environments require the amsmath package.
See also aligned as pointed out in an answer below.
...
Clear the cache in JavaScript
...ry hour, or every week, you may cache according to file data.
Example (in PHP):
<script src="js/my_script.js?v=<?=md5_file('js/my_script.js')?>"></script>
or even use file modification time:
<script src="js/my_script.js?v=<?=filemtime('js/my_script.js')?>"></scr...
Handle file download from ajax post
...easily download a file from an AJAX call by setting the correct headers in PHP's response:
Setting headers server-side
header("HTTP/1.1 200 OK");
header("Pragma: public");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
// The optional second 'replace' parameter indicates whe...
How to animate the change of image in an UIImageView?
...ransition enumeration. Fading effect can be achieved using CoreAnimation. Sample example for this approach:
#import <QuartzCore/QuartzCore.h>
...
imageView.image = [UIImage imageNamed:(i % 2) ? @"3.jpg" : @"4.jpg"];
CATransition *transition = [CATransition animation];
transition.duration = 1...
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转：postfix安装Q&A 原文地址：http: bbs.chinaunix.net viewthread.php?tid=770141执照wangmingda老大的资料安装成功postfix（地址在这里http: www.extmail....
原文地址：http://bbs.chinaunix.net/viewthread.php?tid=770141
执照wangmingda老大...
Immutable vs Mutable types
...know the float object is considered to be immutable, with this type of example from my book:
16 Answers
...
How can I echo a newline in a batch file?
... is expected. The best summary I know of is at dostips.com/forum/viewtopic.php?p=4554#p4554. It kind of leaves you hanging, but no one has ever come up with a scenario where ECHO( fails.
– dbenham
Apr 18 '14 at 17:20
...