Wrong integration - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: HP Prime (/forum-5.html) +--- Thread: Wrong integration (/thread-17839.html)

Wrong integration - Anatoli_Traf - 12-21-2021 04:57 PM Hi, I have a new Prime G2 with the latest 2021.12.02 firmware. But it can't handle with integral int(sin(x^20),x,-20,20) in non-CAS mode. What is wrong? The CAS shows the correct result, the same integral calculated correctly from -10 to 10. Also, the Windows emulator works well. Does HP Prime have any settings for integration? RE: Wrong integration - Wes Loewer - 12-22-2021 04:12 AM I have the same calculator/firmware and I'm getting the correct answer in both CAS and Home. I tried various settings but could not reproduce your result. RE: Wrong integration - Anatoli_Traf - 12-22-2021 05:17 AM Seems I found the issue. I see the CAS setiings, and epsilon were 1e-100. I changed to 0.000000000001 as the Windows emulator has. And finally, it works. RE: Wrong integration - Anatoli_Traf - 12-22-2021 08:18 AM I have some more notes that integration results really depend on epsilon value. Even default 0.000000000001 is not sufficient for some equations, need to reduce.