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How to map atan2() to degrees 0-360
...(theta_rad/M_PI*180) + (theta_rad > 0 ? 0 : 360);
This should work in C++: (depending on how fmod is implemented, it may be faster or slower than the conditional expression)
theta_deg = fmod(atan2(y,x)/M_PI*180,360);
Alternatively you could do this:
theta_deg = atan2(-y,-x)/M_PI*180 + 180;
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Why is there no Tree class in .NET?
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@Veverke Perhaps you were thinking of C++ templates. .NET generics are runtime types.
– Tom Blodget
Sep 29 '16 at 12:46
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Deleting an object in java?
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Your C++ is showing.
There is no delete in java, and all objects are created on the heap. The JVM has a garbage collector that relies on reference counts.
Once there are no more references to an object, it becomes available for ...
“f” after number
...ter that this is a floating point number (I assume you are talking about c/c++ here). If there is no f after the number, it is considered a double or an integer (depending on if there is a decimal or not).
3.0f -> float
3.0 -> double
3 -> integer
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Using the “start” command with parameters passed to the started program
...lt;parameters>
I'm not sure this actually waits for completion... the C++ Redistributable I was installing went fast enough that it didn't matter
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C++11 features in Visual Studio 2012
...It's worth noting that Visual Studio 2010 already had quite a bit of early C++11 support. So to summarize what is already linked to in other answers, here is what is new in Visual Studio 11 that was not part of Visual Studio 2010:
rvalue references to version 2.1 from 2.0
lambdas to version 1.1 fr...
What does the “===” operator do in Ruby? [duplicate]
...o perform whatever the heck you want (analogous to operator overloading in C++).
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How to get english language word database? [closed]
...peful that these broader lists would contain words with punctuation, like "C++" or "C#", but couldn't find any. So if that's what you're after you can short-circuit you can skip this one (and the narrower lists in other answers).
– hobs
Apr 27 '16 at 18:53
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How do you clear a stringstream variable?
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@KshitijBanerjee I think in C++ m.str() and m.str("") are two different functions. m.str() invokes a function which didn't expect any parameter whereas m.str("") will invoke the function which accepts a const char* parameter. m.str() might have been i...
Installing Numpy on 64bit Windows 7 with Python 2.7.3 [closed]
...ed here. Although I did not find it at that time and instead installed the C++ Compiler for Python.
Then the installation continued but failed because of an additional inner exception. Installing .NET 3.5 solved this.
Finally the installation was done. It took some time (5 minutes), so don't cance...