numerical derivatives

To: CALC-TI@LISTS.PPP.TI.COM
Subject: numerical derivatives
From: Jia-Yee Tang <purplekiwi1@HOTMAIL.COM>
Date: Sat, 24 Oct 1998 18:03:29 PDT
Reply-To: Jia-Yee Tang <purplekiwi1@HOTMAIL.COM>

I am a high school student taking AP Calculus and working with a TI-86.
Currently, we are working with our graphing calculators to calculate
numerical derivatives but my teacher only knows about the TI-83, which
doesn't help me at all.

I was wondering if anyone could help me figure out derivatives with
epsilon values different than the default .001. I know that on a TI-83,
you would enter it as "nDeriv(expression,variable,value,epsilon)"
but unfortunately, this process does not work on my TI-86.

My teacher tried to tell us to first enter the "value,sto (the key above
the on key),x" and then told us to enter "nDer(expression, variable,
epsilon) but this also does not work.

Can anyone provide me assistance? Help would be greatly appreciated.


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