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Matplotlib connect scatterplot points with line - Python
...ch is pretty much the same as
plt.plot(dates, values, '-o')
plt.show()
or whatever linestyle you prefer.
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Why does NULL = NULL evaluate to false in SQL server
...ays evaluates to false. This is counterintuitive and has caused me many errors. I do understand the IS NULL and IS NOT NULL keywords are the correct way to do it. But why does SQL server behave this way?
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Is BCrypt a good hashing algorithm to use in C#? Where can I find it? [closed]
I have read that when hashing a password, many programmers recommend using the BCrypt algorithm.
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How can I make gdb save the command history?
How can I set up gdb so that it saves the command history? When starting a new gdb session I'd like to use the arrow up keys to access the commands of the previous sessions.
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How to run Node.js as a background process and never die?
...nded processes. And you can kill a backgrounded process by running kill %1 or kill %2 with the number being the index of the process.
Powerful solution (allows you to reconnect to the process if it is interactive):
screen
You can then detach by pressing Ctrl+a+d and then attach back by running ...
@property retain, assign, copy, nonatomic in Objective-C
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The article linked to by MrMage is no longer working. So, here is what I've learned in my (very) short time coding in Objective-C:
nonatomic vs. atomic
- "atomic" is the default. Always use "nonatomic". I don't know why, but the book I read said there is "rarely a reaso...
What's the difference between & and && in MATLAB?
What is the difference between the & and && logical operators in MATLAB?
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Unloading classes in java?
...the dodo.
One possible solution to your problem is to have a Classloader for every jar file, and a Classloader for each of the AppServers that delegates the actual loading of classes to specific Jar classloaders. That way, you can point to different versions of the jar file for every App server.
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Could not reserve enough space for object heap
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Run the JVM with -XX:MaxHeapSize=512m (or any big number as you need) (or -Xmx512m for short)
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How do I declare and initialize an array in Java?
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You can either use array declaration or array literal (but only when you declare and affect the variable right away, array literals cannot be used for re-assigning an array).
For primitive types:
int[] myIntArray = new int[3];
int[] myIntArray = {1, 2, 3};
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