Figure 1: An exact result for an integral that Mathematica through 12.1 cannot do. (Click the image for higher resolution version)
Mathematica 14.0 can compute:
(*1/12 (-\[Pi] + 2 Sqrt[3] ArcCosh[2] + Sqrt[2] ArcCosh[3])*)
Thank you Mariusz !
I am glad that I included the Mathematica version number, but I will look into getting the latest version and replacing that example.
-- best regards, david stoutemyer