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HTML colspan in CSS
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Quentin
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answered Apr 5 '10 at 16:19
DavidDavi...
Renaming columns in pandas
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edited Jul 3 at 19:15
answered Jul 5 '12 at 14:23
eum...
How do I join two lines in vi?
...OfWarfare
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answered Dec 16 '09 at 7:20
GJ.GJ.
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Flushing footer to bottom of the page, twitter bootstrap
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#wrap {
min-height: 100%;
}
#main {
overflow:auto;
padding-bottom:150px; /* this needs to be bigger than footer height*/
}
.footer {
position: relative;
margin-top: -150px; /* negative value of footer height */
height: 150px;
clear:both;
padding-top:20px;
}
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Why is XOR the default way to combine hashes?
...andom (1-bit) inputs, the AND function output probability distribution is 75% 0 and 25% 1. Conversely, OR is 25% 0 and 75% 1.
The XOR function is 50% 0 and 50% 1, therefore it is good for combining uniform probability distributions.
This can be seen by writing out truth tables:
a | b | a AND b
-...
Differences between MySQL and SQL Server [closed]
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edited Oct 10 '15 at 8:23
Peter Mortensen
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ignoring any 'bin' directory on a git project
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15 Answers
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What is Persistence Context?
...uide/en-US/html/ch03.html
http://docs.jboss.org/hibernate/entitymanager/3.5/reference/en/html/architecture.html
In Java EE, a persistence context is normally accessed via an EntityManager.
http://docs.oracle.com/javaee/6/api/javax/persistence/EntityManager.html
The various states an entity can h...
Specifying and saving a figure with exact size in pixels
Say I have an image of size 3841 x 7195 pixels. I would like to save the contents of the figure to disk, resulting in an image of the exact size I specify in pixels.
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