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Function to calculate distance between two coordinates
... edited Jul 18 '14 at 20:53
CTZStef
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answered Sep 18 '13 at 23:10
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Finding quaternion representing the rotation from one vector to another
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Quaternion q;
vector a = crossproduct(v1, v2);
q.xyz = a;
q.w = sqrt((v1.Length ^ 2) * (v2.Length ^ 2)) + dotproduct(v1, v2);
Don't forget to normalize q.
Richard is right about there not being a unique rotation, but the above should give the "shortest arc," which is proba...
Passing a list of kwargs?
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How to extract a string using JavaScript Regex?
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Struct inheritance in C++
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How is it possible to declare nothing inside main() in C++ and yet have a working application after
...int main() {}
In this code, the global variable ignore has to be initialized before entering into main() function. Now in order to initialize the global, print_fibs() needs to be executed where you can do anything — in this case, compute fibonacci numbers and print them! A similar thing I've sho...
Is there a quick way to delete a file from a Jar / war without having to extract the jar and recreat
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zip -d file.jar unwanted_file.txt
jar is just a zip file after all. Definitely much faster than uncompressing/recompressing.
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Unpacking, extended unpacking and nested extended unpacking
...r completeness.
Once you know a few basic rules, it's not hard to generalize them. I'll do my best to explain with a few examples. Since you're talking about evaluating these "by hand," I'll suggest some simple substitution rules. Basically, you might find it easier to understand an expression if a...
Why not be dependently typed?
...lly just the unification of the value and type levels, so you can parametrize values on types (already possible with type classes and parametric polymorphism in Haskell) and you can parametrize types on values (not, strictly speaking, possible yet in Haskell, although DataKinds gets very close).
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Python creating a dictionary of lists
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benklaasen
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answered Jun 6 '09 at 23:00
mechanical_meatmechanical_meat
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