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How do you do natural logs (e.g. “ln()”) with numpy in Python?
..., whereas np.log10 is your standard base 10 log.
Relevant documentation:
http://docs.scipy.org/doc/numpy/reference/generated/numpy.log.html
http://docs.scipy.org/doc/numpy/reference/generated/numpy.log10.html
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What does “pending” mean for request in Chrome Developer Window?
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I also get this when using the HTTPS everywhere plugin.
This plugin has a list of sites that also have https instead of http. So I assume before the actual request is made it is already being cancelled somehow.
So for example when I go to http://stackexch...
Check if URL has certain string with PHP
...builds your URL and the rest check if it contains the word "car".
$url = 'http://' . $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];
if (strpos($url,'car') !== false) {
echo 'Car exists.';
} else {
echo 'No cars.';
}
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Is there a bash command which counts files?
Is there a bash command which counts the number of files that match a pattern?
14 Answers
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How to style CSS role
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Use CSS attribute selectors:
https://developer.mozilla.org/en-US/docs/CSS/Attribute_selectors
e.g.:
div[role=main]
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How do I find out which keystore was used to sign an app?
...so be CERT.RSA, but there should only be one .RSA file).
Then issue this command:
keytool -printcert -file ANDROID_.RSA
You will get certificate fingerprints like this:
MD5: B3:4F:BE:07:AA:78:24:DC:CA:92:36:FF:AE:8C:17:DB
SHA1: 16:59:E7:E3:0C:AA:7A:0D:F2:0D:05:20:12:A8:85:0B:32:C5:4...
Chaining multiple MapReduce jobs in Hadoop
...ually a number of ways to do this. I'll focus on two.
One is via Riffle ( http://github.com/cwensel/riffle ) an annotation library for identifying dependent things and 'executing' them in dependency (topological) order.
Or you can use a Cascade (and MapReduceFlow) in Cascading ( http://www.cascadi...
Can I have H2 autocreate a schema in an in-memory database?
...pt("sql/provPlan/insertSpecRel.sql")
.build();
ref : http://www.h2database.com/html/features.html#execute_sql_on_connection
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favicon.png vs favicon.ico - why should I use PNG instead of ICO?
... example (note that it's transparent):
<link rel="shortcut icon" href="http://sstatic.net/so/favicon.ico">
<link rel="apple-touch-icon" href="http://sstatic.net/so/apple-touch-icon.png">
The apple-itouch thingy is for iphone users that make a shortcut to a website.
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How to detect a loop in a linked list?
...of the fast node at fixed intervals.
The description is available here : http://www.siafoo.net/algorithm/11
Brent claims that his algorithm is 24 to 36 % faster than the Floyd's cycle algorithm.
O(n) time complexity, O(1) space complexity.
public static boolean hasLoop(Node root){
if(root ==...