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math.factorials: cleanup orial-primes.

db4
John Benediktsson 2013-04-09 12:22:41 -07:00
parent 8cf85383f3
commit 047d9cad3e
1 changed files with 10 additions and 10 deletions
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extra/math/factorials/factorials.factor
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@ -102,23 +102,23 @@ ALIAS: pochhammer rising-factorial
: exponential-factorial ( n -- m )
dup 1 > [ [1,b] 1 [ swap ^ ] reduce ] [ drop 1 ] if ;
<PRIVATE
: orial-prime? ( n quot: ( n -- m ) -- ? )
[ 1 1 [ pick over - 1 <= ] ] dip
'[ drop [ 1 + ] _ bi ] until nip - abs 1 = ; inline
PRIVATE>
: factorial-prime? ( n -- ? )
{
[ prime? ]
[
1 1 [ pick over - 1 <= ] [
drop [ 1 + ] [ factorial ] bi
] until nip - abs 1 =
]
[ [ factorial ] orial-prime? ]
} 1&& ;
: primorial-prime? ( n -- ? )
{
[ prime? ]
[ 2 > ]
[
1 1 [ pick over - 1 <= ] [
drop [ 1 + ] [ primorial ] bi
] until nip - abs 1 =
]
[ [ primorial ] orial-prime? ]
} 1&& ;