Writing an expression in summation notation

  • #1
How would I write

1 + n + n(n - 1) + n(n - 1)(n - 2) + ・・・ + n!

in sigma notation? If it's possible.
 

Answers and Replies

  • #2
390
1
[tex]\sum_{i = 0}^{n} \frac{n!}{(n - i)!}[/tex]
 

Related Threads on Writing an expression in summation notation

  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
3
Views
4K
Replies
2
Views
5K
  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
3
Views
3K
  • Last Post
Replies
5
Views
591
  • Last Post
Replies
2
Views
1K
Replies
3
Views
4K
Top