1. Alternating factorialIn mathematics, an alternating factorial is the absolute value of the alternating sum of the first n factorials. This is the same as their sum, with the odd-indexed factorials multiplied by −1 if n is even, and the even-indexed factorials multiplied by −1 if n is odd, resulting in an alternation of signs of the summands (or alternation of addition and subtraction operators, if preferred). To put it algebraically, or with the recurrence relation in which af(1) = 1.
Read “Alternating factorial” on English Wikipedia
Read “交互階乗” on Japanese Wikipedia
Read “Alternating factorial” on DBpedia
Read “Alternating factorial” on English Wikipedia
Read “交互階乗” on Japanese Wikipedia
Read “Alternating factorial” on DBpedia
Discussions
Log in to talk about this word.