Some integrals with problematic evaluation

[quinyu]

Now a general response to all manufacturers of CAS calculators: Look here, guys. You take > US$100 for your calculators. Is it such a big thing to ask to pack at some convenient place, such as the battery cover, or perhaps the calculator cover itself, a reset pin, so that the user doesn't need to carry a paper clip at all times? I mean... oh okay. Your calcs don't actually ever need one. I get it. *duh*