The sums of the subsets without the actual subsets, obtain from the inner product of the boolean table with the vector:
nums =. 379638 76500 127500 996.1542 418590.6139 b=: #: i. 2^#nums b 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 1 1 0 0 1 0 0 0 0 1 0 1 ... $ b 32 5 b +/ .* nums 0 418591 996.154 419587 127500 546091 128496 547087 76500 495091 77496.2 496087 204000 ... $ b +/ .* nums 32 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
