The numpy docs recommend using array instead of matrix for working with matrices. However, unlike octave (which I was using till recently), * doesn't perform matrix multiplication, you need to use the function matrixmultipy(). I feel this makes the code very unreadable. ...

I know that at() is slower than [] because of its boundary checking, which is also discussed in similar questions like C++ Vector at/[] operator speed or ::std::vector::at() vs operator[] << surprising results!! 5 to 10 times slower/faster! . I just don't understand what the at() met...

I have always thought that functional programming can be done in Python. Thus, I was surprised that Python didn't get much of a mention in this question, and when it was mentioned, it normally wasn't very positive. However, not many reasons were given for this (lack of pattern matching and algebra...

Ok this is more of a computer science question, than a question based on a particular language, but is there a difference between a map operation and a foreach operation? Or are they simply different names for the same thing? ...

What are the differences between the assignment operators = and <- in R? 7 Answers ...

I need to parse RFC 3339 strings like "2008-09-03T20:56:35.450686Z" into Python's datetime type. 27 Answers ...

When using Docker, we start with a base image. We boot it up, create changes and those changes are saved in layers forming another image. ...

If I create an application on my Mac, is there any way I can get it to run on an iPhone without going through the app store? ...

I want to make a JavaScript application that's not open source, and thus I wish to learn how to can obfuscate my JS code? Is this possible? ...

How does Windows with NTFS perform with large volumes of files and directories? 7 Answers ...