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Can't su to user jenkins after installing Jenkins
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edited Mar 20 '17 at 10:18
Community♦
111 silver badge
answered Aug 6 '13 at 13:03
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How do you do natural logs (e.g. “ln()”) with numpy in Python?
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np.log is ln, 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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How does Amazon RDS backup/snapshot actually work?
... what you're seeing:
Although Amazon does not share the backend details 100%, we strongly suspect that they are using their EBS system to back RDS databases.
This article helps explain EBS limitations and snapshot functionality http://blog.rightscale.com/2008/08/20/amazon-ebs-explained/ Again, w...
Redis cache vs using memory directly
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Didier SpeziaDidier Spezia
60.6k1010 gold badges156156 silver badges139139 bronze badges
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How to compare dates in datetime fields in Postgresql?
...without timezone'. Client can search over this field with only date (i.e: 2013-05-03) or date with time (i.e: 2013-05-03 12:20:00). This column has the value as timestamp for all rows currently and have the same date part(2013-05-03) but difference in time part.
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Visual Studio jump to next error shortcut?
When a compile fails in VB.NET in Visual Studio 2008, an Error List pops up at the bottom of the screen. To jump to an error, I double click on an error in the error list.
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How do I convert a Ruby class name to a underscore-delimited symbol?
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how to do the reverse?
– user1406062
May 26 '13 at 8:39
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show 4 more comments
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UIView with rounded corners and drop shadow?
...nd drop shadow to v, a UIView:
// border radius
[v.layer setCornerRadius:30.0f];
// border
[v.layer setBorderColor:[UIColor lightGrayColor].CGColor];
[v.layer setBorderWidth:1.5f];
// drop shadow
[v.layer setShadowColor:[UIColor blackColor].CGColor];
[v.layer setShadowOpacity:0.8];
[v.layer setSh...
Serializing an object to JSON
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answered Feb 17 '09 at 20:16
Mike_GMike_G
14.1k1111 gold badges6060 silver badges9292 bronze badges
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UITableViewCell subview disappears when cell is selected
...enting a color-chooser table view where the user can select amongst, say, 10 colors (depends on the product). The user can also select other options (like hard drive capacity, ...).
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