Friday 23 January 2015

omega3

   three layers of information omega, bigomega, and the differences between these two values   

Thursday 15 January 2015

turning the light on divisor chains

two similar art works based on the concept of divisor chains, a simple example to illustrate
start with a number, say 3.  clearly 3 | 3  ( 3 divides 3 )
3, 1  is OK as  1 | (3+1) ;
  3, 1, 2  is OK as  2 | (3+1+2)  ;
    3, 1, 2, 6  is OK as  6 | (3+1+2+6)
      3, 1, 2, 6, 4  is OK as  4 | (3+1+2+6+4)
        3, 1, 2, 6, 4, 8  is OK as  8 | (3+1+2+6+4+8)
the idea is to consider earliest ( smallest ) whole numbers not yet used
until we find a value is OK, satisfying the required property.
the sum is up to 24.  at this stage, adding 5 isn't going to help, neither is adding 7, nor 9,
nor 10, nor 11, what about 12 ?
12 does the job nicely as 24 + 12 = 36 and 12 | (3+1+2+6+4+8+12)
the puzzle is to discover from the grouping and ordering of the coloured rectangles
what are the divisor chains represented from permutations of { 1, ..., n }



Monday 12 January 2015