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Draw a perfect circle from user's touch
...d to draw circles and then he asked me to make it "good circle" (from my understanding: make the drawn circle perfectly round, as we know
no matter how stable we try to draw something with our finger on the screen, a circle is never really as rounded like a circle should be).
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What and where are the stack and heap?
...hat these two things are. I haven't read a clear explanation of this. I understand what a stack is. But,
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Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4
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What is the difference between bottom-up and top-down?
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“Thinking in AngularJS” if I have a jQuery background? [closed]
Suppose I'm familiar with developing client-side applications in jQuery , but now I'd like to start using AngularJS . Can you describe the paradigm shift that is necessary? Here are a few questions that might help you frame an answer:
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data.table vs dplyr: can one do something well the other can't or does poorly?
...e dplyr for expressiveness on medium data;
feel free to use data.table for raw speed on bigger data.
The flexibility of dplyr also means that you can easily tweak performance
characteristics using the same syntax. If the performance of dplyr with
the data frame backend is not good enough for you, y...
How to get device make and model on iOS?
I was wondering if it's possible to determine what kind of iPhone (for example) the currentdevice is? I know it's possible to get the model through
NSString *deviceType = [[UIDevice currentDevice] model];
which will just return whether I have an "iPhone" or an "iPod", BUT I was wondering if...