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howzit?
howzit?
Nothing going tonight. Up late, needing sleep. See you tomorrow. PS found a light read on mind/brain sleep research in the 20th century, linked under current readings. -kevin
== ditto ==
Thanks
[[User:Immonad|Immonad]] ([[User talk:Immonad|talk]]) 18:40, 31 July 2013 (UTC)
== this is an example of a note to say hello via wiki because email is a broken protocol, considered harmful, and depracatable ==
'''say what ???''' --[[User:Danf|Danf]] ([[User talk:Danf|talk]]) 01:18, 22 August 2013 (UTC)
== Good stuff ==
By golly have a listen
http://www.fourier-series.com/f-transform/index.html
== Connectivity Restored... ==
to switch 31, aka the collaboration station.
https://en.wikipedia.org/wiki/Foobar
== ??? ==
    def egcd(a, b):
        if a == 0:
            return (b, 0, 1)
        else:
            g, y, x = egcd(b % a, a)
            return (g, x - (b // a) * y, y)
https://en.wikibooks.org/wiki/Algorithm_Implementation/Mathematics/Extended_Euclidean_algorithm
I've never seen anything like it.
== hey dan ==
Chris here. Good talking last night. Here's the deep learning site I mentioned. deeplearning4j.org. Curious to hear what you think.
== Bluetooth Dongle ==
I think we have a BS009 from BlueSoleil
http://www.bluesoleil.com/products/H0001201304230001.html
== HTML5 Canvas Element ==
Thought you might like to play around with this.. I just stumbeled on this shape hacking a grid together.
   
    <html>                                                                             
      <head>                                                                           
        <title>@title</title>                                                           
        <script type="text/javascript">                                                 
          function rect(ctx, grid, step, cur){                                         
              ctx.lineTo(cur, 0)                                                       
              ctx.lineTo(cur, grid)                                                     
              ctx.lineTo(0, cur)                                                       
              ctx.lineTo(grid, cur)                                                     
              ctx.stroke()                                                             
              if (cur < grid){                                                         
                  rect(ctx, grid, step, cur+step)                                       
              }                                                                         
          }                                                                             
          function draw(grid){                                                         
            var canvas = document.getElementById('bg');                                 
            if (canvas.getContext){                                                     
              var ctx = canvas.getContsext('2d');                                       
              ctx.strokeStyle = '#808080';                                             
              rect(ctx, grid, 20, 20)                                                   
            }                                                                           
          }                                                                             
        </script>                                                                       
        <style type="text/css">                                                         
          canvas { border: 1px solid black; }                                           
        </style>                                                                       
      </head>                                                                           
      <body onload="draw(800);">                                                     
        <canvas id="bg" width="800" height="800"></canvas>       
      </body>                                                                           
    </html>
== Sets ==
<pre>
from random import shuffle
# from itertools import combinations
def combinations(iterable, r):
    pool = tuple(iterable)
    n = len(pool)
    if r > n:
        return
    indices = list(range(r))
    yield tuple(pool[i] for i in indices)
    while True:
        for i in list(range(r))[::-1]:
            if indices[i] != i + n - r:
                break
        else:
            return
        indices[i] += 1
        for j in range(i+1, r):
            indices[j] = indices[j-1] + 1
        yield tuple(pool[i] for i in indices)
def deck():
    r = list(range(3))
    d = [(a,b,c,d) for a in r for b in r for c in r for d in r]
    shuffle(d)
    return d
def deal(d, n):
    if len(d) < n:
        return []
    return [d.pop() for i in range(n)]
def is_set(trio):
    att = lambda x: set(y[x] for y in trio)
    atts = (att(x) for x in range(4))
    return all(len(x) != 2 for x in atts)
def sets(h):
    return [trio for trio in combinations(h, 3) if is_set(trio)]
def pare(h, cards):
    for c in cards:
        h.remove(c)
       
def replace(h, d):
    n = 12 - len(h)
    if n == 0:
        n = 3
    h.extend(deal(d, n))
   
def round(d, h):
    found_sets = sets(h)
    while found_sets:
        first_set = found_sets[0]
        yield first_set
        pare(h, first_set)
        found_sets = sets(h)
    replace(h, d)
def play():
    d = deck()
    h = deal(d, 12)
    found_sets = []
    num_rounds = 0 
    while len(d) > 2:
        num_rounds += 1     
        print("round %d" % num_rounds)
        for x in round(d, h):
            print(x)
            found_sets.append(x)
    print("%d sets found in %d rounds" % (len(found_sets), num_rounds))
   
play()
</pre>
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