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Would anybody recommend learning J/K/APL?

I came across J/K/APL a few months ago while working my way through some project euler problems, and was intrigued, to say the least. For every elegant-looking 20 line python solution I produced, there'd be a gobsmacking 20 character J solution that ran in a tenth of the time. I've been keen to learn some basic J, and have made a few att...

Keeping your code in L1 cache

I have been reading Wikipedia's article on K programming language and this is what I saw: The small size of the interpreter and compact syntax of the language makes it possible for K applications to fit entirely within the level 1 cache of the processor. I am intrigued. How is it possible to have the whole program in L1 cache? Say,...

Learning J/K/APL.

I know all 3 are related, and I've seen quite a few answers for problems in Project Euler written in J, and a few written K. What I'm wondering is, which would you suggest learning, and where would you suggest going about getting the materials to learn it? ...

K/APL style programming in C++?

I'm writing code in C++, but I really like K/APL's array-oriented style. Does anyone know of a good set of operator overloading tricks / macros / ... to allow some K/APL -style programming in C++? Thanks! ...

Image similarity and k-mean clustering ...

Hi I'm playing a little bit with image similarity. In fact i'm playing with image retrieval system. Ideally i wanna to create some kind of image index that I can query to get similar images. My current thought is to store some kind of ImageDescriptor into index and each descriptor can have different features in it, e.g. k-mean-cluster-...

APL versus A versus J versus K?

The array-language landscape, while fascinating, is confusing to no end. Is there a reason to to pick and of J or K or APL or A? None of these options seem to be open-sourced -- are there open sourced versions? I would love the expand my mind, but I remain befuddled. ...

Does anyone use K or Kdb outside financial arena?

Does anyone use K or Kdb outside financial arena? If so what have you used it for. ...