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What is Hexagonification™?
Hexagonification™ is a transformation that creates a hexagon with 3 copies of a rectangle block, each skewed to the right by 30 degrees and then rotated by 0, 120 and 240 degrees respectively, as shown in the following image. A triangle hole may appear in the ...
Make an APL parser code-golf arithmetic string
In this task, given an infix expression, fill in all of the implicit inputs. (You only need to deal with (+, -, and ().)
Expressions are only allowed to be dyadic and not monadic. If an operator is monadic, prepend an input.
What do I do?
The rul...
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In computer science, lexical analysis, lexing or tokenization is the process of converting a sequence of characters (such as in a computer program or web page) into a sequence of tokens (strings with an assigned and thus identified meaning). A program that performs lexical analysis may be termed a lexer, tokenizer, or scanner, though scanner is also a term for the first stage of a lexer. A lexer is generally combined with a parser, which together analyze the syntax of programming languages, web pages, and so forth.
== Applications ==
A lexer forms the first phase of a compiler frontend in modern...
Output the von Neumann Ordinal
The task is simple: given a number, output its von Neumann ordinal in the following format:
0 -> {}
1 -> {{}}
2 -> {{},{{}}}
3 -> {{},{{}},{{},{{}}}}
...
I'm sure this must have been asked before, but I can't seem to find the challenge - maybe I'm using the w...
