Factorials
Definition of a Factorial
Denoted by the symbol "!" after an integer; the product of that integer and all integers in descent to 1.
Example of a factorial:
5! = 5 x 4 x 3 x 2 x1
5! = 120
Strange Factorials
0! = 1 1! = 1
Lessons In Electric Circuits copyright (C) 2000-2020 Tony R. Kuphaldt, under the terms and conditions of the CC BY License.
See the Design Science License (Appendix 3) for details regarding copying and distribution.
Revised July 25, 2007
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