Re: Symbolic85

Subject: Re: Symbolic85
From: Jonathan Todd Samuel <jsamuel+@ANDREW.CMU.EDU>
Date: Mon, 28 Oct 1996 09:01:51 -0500
In-Reply-To: <32744926.6CB2@davlin.net>

The ti85 does no symbolic manipulation. When you graph y2=der1(x^2     )
 (I don't remember the full parameter list for der1), all the ti does
evaluate x^2 at a test point and another very close point for each value
of x that appears on the graph, so that it can calculate the slope
(rise/run) for each point on the graph. Unfortunately, the symbolic
derivative 2x is not anywhere in the calc.'s memory when you graph
der1(x^2          ), so not even a trick with strings can get to it.

References:

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