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What is difference between functional and imperative programming languages?
...object-oriented programming (OOP) languages such as C#, Visual Basic, C++, and Java were designed to primarily support imperative (procedural) programming, whereas Haskell/gofer like languages are purely functional. Can anybody elaborate on what is the difference between these two ways of programmin...
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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SQL query return data from multiple tables
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Part 1 - Joins and Unions
This answer covers:
Part 1
Joining two or more tables using an inner join (See the wikipedia entry for additional info)
How to use a union query
Left and Right Outer Joins (this stackOverflow answer is excelle...
How do I tell Maven to use the latest version of a dependency?
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NOTE:
This answer applies to Maven 2 only! The mentioned LATEST and RELEASE metaversions have been dropped in Maven 3 "for the sake of reproducible builds", over 6 years ago.
Please refer to this Maven 3 compliant solution.
If you always want to use the newest version, Maven has two k...
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 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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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...
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 does the Brainfuck Hello World actually work?
Someone sent this to me and claimed it is a hello world in Brainfuck (and I hope so...)
6 Answers
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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?
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