10 lines
286 B
Factor
10 lines
286 B
Factor
USING: fry kernel math ;
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IN: rosettacode.Y
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: Y ( quot -- quot )
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'[ [ dup call call ] curry @ ] dup call ; inline
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: almost-fac ( quot -- quot )
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'[ dup zero? [ drop 1 ] [ dup 1 - @ * ] if ] ;
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: almost-fib ( quot -- quot )
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'[ dup 2 >= [ 1 2 [ - @ ] bi-curry@ bi + ] when ] ;
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