kdb - Pascal's triangle in k/q -


fibonacci nice:

  f:|+\ 5 f\1 1

but haven't found similar expression pascal's triangle. best can get:

q){x+\\x#1}6 1 1 1  1  1   1   1 2 3  4  5   6   1 3 6  10 15  21  1 4 10 20 35  56  1 5 15 35 70  126 1 6 21 56 126 252 1 7 28 84 210 462

there's pretty nifty 1 on q idioms page 

q)pt:{0+':x,0} q)4 pt\ 1 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1

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