Exponential transform of an integer sequence code-golf math sequence integer polynomial The exponential generating function (e.g.f.) of a sequence \$a_n\$ is defined as the formal power series \$f(x) = \sum_{n=0}^{\infty} a_n \frac{x^n}{n!}\$. When \$a_0 = 0\$, we can apply the exponential funct...

Given a multi-line string as input containing characters "|", "_" and " " (space), count the number of cells it contains. A cell is the following structure of 3 characters by 2 lines: _ |_| That is, an underscore on one line (the characters to its right and left don’t matter), and "|_|" right b...

Repeat Hello World This was related to a program I am writing. Although the title is simple, the challenge is a lot more complicated. Your challenge: You must write a program that takes some input, and your answer must match the sample outputs in this question. Please write how many bytes it ...

Verify the diamond property A polytope is a generalization of the concepts of polygons and polyhedra to higher dimensional space. Now higher dimensional space is a little hard to picture so we have a variety of tools for thinking about and working with polytopes to ease this issue. One of these t...

In this challenge you will receive as input a list of binary lists. The list represents a game board with each element representing a location on the board. The list at each location represents the tiles on the board, with a 0 being a white tile (□) and a 1 being a black tile (■). Each place c...