Improper Integrals on 42 platforms
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01-20-2019, 06:48 PM
Post: #1
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Improper Integrals on 42 platforms
I was grateful to have been generously given an HP-42S. I was quite impressed, and ordered the DM 42. I'm wondering...has anyone noticed that the 42S and the DM 42 seem to have difficulty with improper integrals? I tried integrating (abs(sin x))/x from -pi/4 to pi/3, and found that even on the DM 42, I had to give up when using acc=1E-5. It did better at acc=1E-03. In contrast, my new TI 30X Pro MathPrint with the default at 1E-05 comes up with an answer good through 5 decimals in 28 seconds. On proper integrals, the various 42's are faster, the DM 42 often very quick. Still, I find that I like the feel of the 42S and it's keyboard. The DM 42 keyboard annoyingly will miss a keystroke from time to time...
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Messages In This Thread |
Improper Integrals on 42 platforms - lrdheat - 01-20-2019 06:48 PM
RE: Improper Integrals on 42 platforms - Thomas Klemm - 01-20-2019, 08:40 PM
RE: Improper Integrals on 42 platforms - Albert Chan - 01-21-2019, 05:56 PM
RE: Improper Integrals on 42 platforms - Csaba Tizedes - 01-21-2019, 06:01 PM
RE: Improper Integrals on 42 platforms - ijabbott - 01-21-2019, 09:14 PM
RE: Improper Integrals on 42 platforms - lrdheat - 01-21-2019, 08:58 PM
RE: Improper Integrals on 42 platforms - ijabbott - 01-21-2019, 09:06 PM
RE: Improper Integrals on 42 platforms - lrdheat - 01-21-2019, 10:51 PM
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