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Why are elementwise additions much faster in separate loops than in a combined loop?

Suppose a1 , b1 , c1 , and d1 point to heap memory and my numerical code has the following core loop. 10 Answers ...
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How to calculate the angle between a line and the horizontal axis?

...on, C#, etc) I need to determine how to calculate the angle between a line and the horizontal axis? 9 Answers ...
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Passing parameters to a Bash function

...h function, but what comes up is always how to pass parameter from the command line. 7 Answers ...
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How to calculate “time ago” in Java?

In Ruby on Rails, there is a feature that allows you to take any Date and print out how "long ago" it was. 30 Answers ...
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How can I determine whether a 2D Point is within a Polygon?

..., but macOS for example uses float for everything. macOS only knows points and a point can translate to one pixel, but depending on monitor resolution, it might translate to something else. On retina screens half a point (0.5/0.5) is pixel. Still, I never noticed that macOS UIs are significantly slo...
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What's the difference between a proc and a lambda in Ruby?

And when would you use one rather than the other? 8 Answers 8 ...
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Evenly distributing n points on a sphere

...le code node[k] is just the kth node. You are generating an array N points and node[k] is the kth (from 0 to N-1). If that is all that is confusing you, hopefully you can use that now. (in other words, k is an array of size N that is defined before the code fragment starts, and which contains a lis...
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What is the role of the bias in neural networks? [closed]

I'm aware of the gradient descent and the back-propagation algorithm. What I don't get is: when is using a bias important and how do you use it? ...
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HTTP 1.0 vs 1.1

...ould somebody give me a brief overview of the differences between HTTP 1.0 and HTTP 1.1? I've spent some time with both of the RFCs, but haven't been able to pull out a lot of difference between them. Wikipedia says this: ...
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How can I check if a string represents an int, without using try/except?

... is an int, so does your program. If Python changes, so does your program, and without changing a single line of code. There's some value in that. It might be the right thing to do depending on the circumstances. – Shavais Oct 8 '14 at 16:07 ...