Re: der2 on TI-86?
[Prev][Next][Index][Thread]
Re: der2 on TI-86?
Message from Nester, Darryl [19:47 00-02-01 ]:
>Michael Florea at michaelf@COLUMBIACU.ORG asked:
>
>> Can anyone tell me why I can't do the following command on a TI-86?
>>
>> der2(x^3-12x^2+6x+10,x,0)
>>
>> This should just be the second derivative of the function at x=0 which
>> equals -24, right? I keep getting "ERROR 04 DOMAIN". Am I missing
>> something incredibly obvious?
I get same error. I hope this help :-)
However, taking
der2(x^3-12x^2+6x+10,x,0.00001)
gives the correct answer
-23.99994
It seems that the reason is the numerical derivation
alogrithm used in TI-86.
Regards
mjw
******************************************************************
* To UNSUBSCRIBE, send an email TO: listserv@lists.ppp.ti.com
* with a message (not the subject) that reads SIGNOFF CALC-TI
*
* Archives at http://peach.ease.lsoft.com/archives/calc-ti.html
******************************************************************