Handbook
Glossary
subfactorial ( n -- ? )
Vocabulary
math
.
factorials
Inputs
n
an
object
Outputs
?
an
object
Definition
USING:
math
math.constants
;
IN:
math.factorials
:
subfactorial
( n -- ? )
[
1
]
[
factorial
1
+
e
/i
]
if-zero
;