26 lines
805 B
Mathematica
26 lines
805 B
Mathematica
(* vdc.m -- van der Corput script *)
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(* Copyright (C) 2013 SheetJS *)
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(* vim: set ft=mma: *)
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(* Usage: math -script vdc.m <dispdigits> <base> <nelts> *)
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(* read arguments from command line *)
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argdigs=ToExpression[$CommandLine[[-3]]];
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argbase=ToExpression[$CommandLine[[-2]]];
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argelts=ToExpression[$CommandLine[[-1]]];
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d={argdigs,argdigs};
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(*
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van der Corput sequence generation in mathematica:
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http://reference.wolfram.com/mathematica/CUDALink/tutorial/Applications.html
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this function returns a table of the form
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[iteration, fraction]
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*)
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VanDerCorput[base_][len_]:=Table[
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{n, With[{digits = Reverse@IntegerDigits[n, base]},
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N[Sum[argbase^(-ii)*digits[[ii]], {ii, Length[digits]}],d]]}, {n, len}];
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(* print table form *)
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data=VanDerCorput[argbase][argelts];
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Print[Grid[data]//OutputForm]
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