This is a stupid workaround. Anyway:

FindSequenceFunction@Table[Integrate[k^2 η[n, k], {k, -∞, +∞}, Assumptions -&gt; {n == p}], {p, 5}]
(*
 π^2 #1^2 &amp;
*)


Calculate integral for arbitrary parameter n in infinite square well problem
Are there fluid tripod heads made for use with compact or at least lightweight cameras (such as my LX100)? Most seem built to support a tank (or full-blown DSLR/video camera). 

I would like to be able to pan with my small compact.
