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Calculating arithmetic mean (one type of average) in Python
...common thing is to consider that the average of [] is 0, which can be done by float(sum(l))/max(len(l),1).
– yo'
Feb 12 '15 at 23:18
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Double decimal formatting in Java
... You're getting a comma because of the default language used by your JVM, which is probably different from those of Nambari. Have a look at NumberFormat javadoc : docs.oracle.com/javase/1.4.2/docs/api/java/text/…
– Michael Zilbermann
Oct 9 '12 a...
Persistent :set syntax for a given filetype?
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@HaralanDobrev, it probably gets overwritten by another autocommand defined after this line. Run :autocmd BufNewFile,BufRead *.html.twig inside Vim to see all registered autocommands (also try with separate events, only BufNewFile and only BufRead). Also check output of...
Should JAVA_HOME point to JDK or JRE?
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You can use either the JDK or the JRE but: JAVA_HOME is used by the launcher for finding the JDK/JRE to use. (JDK is recommended as some tasks require the java tools.). ANT_HOME setting
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How can I confirm a database is Oracle & what version it is using SQL?
...is indeed Oracle, and if possible, what version of Oracle they are running by sending a SQL statement to the datasource.
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Stop Visual Studio from launching a new browser window when starting debug?
...proj. I had previously tried changing the URL that the browser would open by modifying "Project URL" and saw that it got changed in .csproj. Upon closer inspection, I now see that there is a "Apply server settings to all users" checkmark which controls just that field. My bad.
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Navigation bar appear over the views with new iOS7 SDK
...eep compatibility with ios6 you are forced to introduce a conditional case by code to check if the controller has that property or not..
– jerrygdm
Aug 27 '13 at 8:24
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UITableViewCell Separator disappearing in iOS7
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You need to ceil the number of pixels and then divide by screen scale factor to get points which is okay to be in decimal. If you don't do this, it won't be retina optimized.
– trss
Mar 11 '14 at 16:38
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How do I make a transparent canvas in html5?
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Canvases are transparent by default.
Try setting a page background image, and then put a canvas over it. If nothing is drawn on the canvas, you can fully see the page background.
Think of a canvas as like painting on a glass plate.
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Rails how to run rake task
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You can run Rake tasks from your shell by running:
rake task_name
To run from from Ruby (e.g., in the Rails console or another Rake task):
Rake::Task['task_name'].invoke
To run multiple tasks in the same namespace with a single task, create the following new...