Make next-odd public again as it's used elsewhere
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! Copyright (C) 2008 Doug Coleman.
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! Copyright (c) 2008-2009 Doug Coleman.
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! See http://factorcode.org/license.txt for BSD license.
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USING: combinators kernel locals math math.functions math.ranges
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random sequences sets combinators.short-circuit math.bitwise
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@ -13,8 +13,6 @@ IN: math.miller-rabin
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: next-even ( m -- n ) >even 2 + ;
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: next-odd ( m -- n ) dup even? [ 1 + ] [ 2 + ] if ;
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TUPLE: positive-even-expected n ;
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:: (miller-rabin) ( n trials -- ? )
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@ -29,12 +27,14 @@ TUPLE: positive-even-expected n ;
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] [
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r iota [
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2^ s * a swap n ^mod n - -1 =
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] any? not
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] any? not
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] if
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] any? not ;
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PRIVATE>
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: next-odd ( m -- n ) dup even? [ 1 + ] [ 2 + ] if ;
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: miller-rabin* ( n numtrials -- ? )
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over {
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{ [ dup 1 <= ] [ 3drop f ] }
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