# Simplification 2

GROUPS:
 Hey guys, I got a simplification question again.I am trying to show the function Cov is independent of s, which turns out to be true when A=0, 1 and some numerical tests. Mathematica is not able to give FullSimplification result after 2 hours running. So I am wondering is there any other way to show this function is independent of s. I tried differentiate w.r.t s, while the function is still complicated to be simplified.Please find my function Cov in the attachment. You may oonsider f and g are two constants in the function. Be careful about the domain of parameters.Thanks in advance. Attachments:
11 days ago
4 Replies
 If I don't misunderstand your code, it seems to me that your Cov does depend on s: Simplify[Cov[4, -1, 1, 2, 1, s] /. {f -> 1, g -> 2}] 
 Thanks for the example.I am sorry I forgot to mention the domain of these parameters. $\delta$ should be greater than 0 and A is between 0 and 1. Let me know if you still have another one.
 Here it is: Simplify[Cov[1/2, 2, 1, 2, 1, s] /. {f -> 1, g -> 2}]