Question about Texas Instruments TI-89 Calculator

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Domain error When I type numbers in list 1 and list 2 and try regression, I get "Domain Error" message. Can you help me with this? Please send reply to srmowla@yahoo.com Thanks. Robin

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  • Anonymous Nov 11, 2008

    exactly the same prob.

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It's the "Exact/Approx" setting under the [MODE] key. I used to have it on "Exact" and got the domain error issue, but then changed it to "Auto" and it works. IMO, this is a really weird quirk that TI should have ironed out before releasing the TI-89.

Posted on Jan 08, 2010

  • ZephyrX Jan 08, 2010

    It's the "Exact\Approx" setting under the [MODE] menu. Just toggle it to "Auto" and it gets rid of the domain error issue. I'm guessing that "Approx" works too, but I haven't tested it. IMO, this is something TI should have fixed before releasing the TI-89.

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I changed the mode and that solved the problem.

Posted on Apr 03, 2008

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It doesnt work if you type factions into your lists. place your cusor over the name of your list, i.e. list1 (make sure its highlighted), press the diamond key and then press enter. This should convert all the fractions to decimals. Doing this made the domain error for LinReg(ax+b) go away for me. Good luck!

Posted on Dec 03, 2009

What do you mean? Which part of the mode did you switch?because I'm having the same problem.

Posted on Sep 03, 2008

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a8d4376.jpg
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