shawa

#!/usr/bin/env python2
import BaseHTTPServer
import SimpleHTTPServer
import SocketServer
import socket
import ssl
import threading
import time

from os.path import expanduser

shawa

#!/usr/bin/swipl -f -q
:- initialization main.

%   _    1
%  |_|  234
%  |_|  567
%   _  _     _  _  _  _  _  _
% | _| _||_||_ |_   ||_||_|| |
% ||_  _|  | _||_|  ||_| _||_|

shawa

import sys
import requests

URL = 'https://eventphone.de/guru2/phonebook?event=34C3&s=&page=1&format=json'

patterns = {
    'doubled': lambda x: x[0] == x[1] and x[2] == x[3],
    'alternate': lambda x: x[0] == x[2] and x[1] == x[3],
    'end ten': lambda x: x[0] == x[1] and x[3] == '0',
    'middle same': lambda x: x[1] == x[2],

shawa

⍝ An example board, the 4x4 reshape of a 16-vector

      board ← 4 4 ⍴ 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0:

      board
0 1 0 0
0 1 0 0
0 0 0 0
0 0 0 0

shawa

:- use_module(library(clpfd)). % grab some matrix functions

% Herein we present facts about boards.
% Given these facts, the user can consult Prolog for interesting
% inferences based on these facts.

%    Example consultation:
%    
%    › swipl facts.pl                                                
%    Welcome to SWI-Prolog (threaded, 64 bits, version 7.6.1)    

shawa

⍝ extract only the parentheses from the character array ⍵
⍝
⍝       parens 'aa(bb)cc'
⍝ '()'
parens ← {(⍵∊'()')/⍵}

⍝ from a character array containing only '(' and ')',
⍝ map '(' to 1, and ')' to ¯1
⍝
⍝       open_close '()'

shawa

defmodule Runlength do
  defp encode([], cur_char, n, cur_encoded), do: "#{cur_encoded}#{n}#{<<cur_char>>}"
  defp encode([h | tail], cur_char, n, cur_encoded) do
    case h do
      ^cur_char -> encode tail, h, n + 1, cur_encoded
      _         -> encode tail, h, 1    , "#{cur_encoded}#{n}#{<<cur_char>>}"
    end
  end

  def encode(string) do

shawa

import sys

infile = sys.argv[1]

with open(infile, 'r') as f:
    triples = (line.split(',') for line in f)
    GRADES = [(int(t[1]), int(t[2])) for t in triples]

total_credits = sum(credits for (credits, _) in GRADES)

shawa

⍝ A rotation matrix, rotates coordinates ⍵ rads
rotate ← {3 3⍴((2○⍵)(-1○⍵)0(1○⍵)(2○⍵)0 0 0 1)}

⍝ A translation matrix, displaces coordinates ⍵
⍝ steps  downward (moves us ⍵ steps north)
translate ← {3 3⍴(1 0(-⍵)0 1 0 0 0 1)}

⍝ Lookup function to convert 'L' and 'R' to
⍝ rotation angles
pi ← ○1

shawa

from numpy import sin, cos, array, pi
from operator import matmul
from functools import reduce

def move(theta, s):
    """Generate a translation and rotation matrix from a given angle theta 
    and displacement s. The transformation rotates the whole coordinate 
    system either left or right, then moves us `s` steps north
    
    Given a vector v = [ x y 1 ], and a tranformation matrix A,