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How do you do natural logs (e.g. “ln()”) with numpy in Python?
... edited Sep 25 '13 at 14:03
Hooked
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answered May 15 '12 at 1:41
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updating table rows in postgres using subquery
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gsamaras
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answered Jun 6 '11 at 22:07
Andrew LazarusA...
How to study design patterns? [closed]
I have read around 4-5 books on design patterns, but still I don't feel I have come closer to intermediate level in design patterns?
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How can I shift-select multiple checkboxes like GMail?
In GMail, the user can click on one checkbox in the email list, hold down the Shift key, and select a second checkbox. The JavaScript will then select/unselect the checkboxes that are between the two checboxes.
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Given a view, how do I get its viewController?
...es, the superview is the view that contains your view. Your view shouldn't know which exactly is its view controller, because that would break MVC principles.
The controller, on the other hand, knows which view it's responsible for (self.view = myView), and usually, this view delegates methods/even...
Set Background color programmatically [duplicate]
I try to set background color programmatically but when I set every one of my colors, the background being black but with any color background being white like the application theme.
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Collection was modified; enumeration operation may not execute
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What's likely happening is that SignalData is indirectly changing the subscribers dictionary under the hood during the loop and leading to that message. You can verify this by changing
foreach(Subscriber s in subscribers.Values)
To
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Why do people use Heroku when AWS is present? What distinguishes Heroku from AWS? [closed]
I'm a beginner RoR programmer who's planning to deploy my app using Heroku. Word from my other advisor friends says that Heroku is really easy, good to use. The only problem is that I still have no idea what Heroku does...
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Is an array name a pointer?
...ven integers, and you can put a value in one of them with an assignment, like this:
a[3] = 9;
Here is a pointer:
int *p;
p doesn't contain any spaces for integers, but it can point to a space for an integer. We can, for example, set it to point to one of the places in the array a, such as the ...
Emacs bulk indent for Python
Working with Python in Emacs if I want to add a try/except to a block of code, I often find that I am having to indent the whole block, line by line. In Emacs, how do you indent the whole block at once.
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