Roll | ? ?. 0 0 0 | Deal |
? y yields a uniform random selection from the
population i.y if y is a positive integer, or from
the interval of numbers greater than or equal to 0 and less than 1,
if y is 0. The random seed used begins
at 7^5 (16807).
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x ? y is a list of x items randomly chosen
without repetition from i.y .
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?. 6 0 ?. 6 6 6 6 6 6 6 6 0 5 5 4 2 3 2 1 6 ?. 6 A random permutation 0 1 5 4 3 2 mean=: +/ % # mean ?. 1000 # 6 2.459 ] m=: ?. 4 4 $ 9 A random matrix for experimentation 3 8 8 4 2 0 2 7 4 2 3 5 1 1 7 2 -/ . * m The determinant of m _659 f=: ?.@$ % ] - 1: 3 6 f 9 Random 3 by 6 table in range zero to one with resolution 9 0.375 1 1 0.5 0.25 0 0.25 0.875 0.5 0.25 0.375 0.625 0.125 0.125 0.875 0.25 0.875 0.75The random seed (a beginning value for the pseudo-random number generator) is set by the foreign conjunction using 9!:1, and queried with 9!:0 . The algorithm is GB_Flip (Knuth [15]) with a period length of at least _1+2^55 .