1. Home >
  2. Apps >
  3. Groups >

Why is 0! = 1 ?

Question asked by Da Vinci in #Coffee Room on Aug 26, 2015
Da Vinci
Da Vinci · Aug 26, 2015
Rank E1 - BEGINNER
Why is 0! = 1 ? Posted in: #Coffee Room
Kaustubh Katdare
Kaustubh Katdare · Aug 26, 2015
Rank A1 - PRO
Da Vinci
Why is 0! = 1 ?
Short answer: It's been 'defined' that way to make sense, and fit into general scheme of things.
Anoop Kumar
Anoop Kumar · Aug 26, 2015
Rank A2 - PRO
Factorial by definition is how many number of ways you can arrange n, Natural numbers of things.
2! = {1,2}, {2,1} -> 2
1! = {1} -> 1
0! = {} -> 1

Here is several explanation in this video
Da Vinci
Da Vinci · Aug 27, 2015
Rank E1 - BEGINNER
Thanks for the reply 😀 ...

You must log-in or sign-up to reply to this post.

Click to Log-In or Sign-Up