[TI-M] Re: Derivative on 83+

To: ti-math@lists.ticalc.org
Subject: [TI-M] Re: Derivative on 83+
From: robvanwijk@gmx.net
Date: Thu, 5 Sep 2002 15:54:59 +0200 (MEST)
References: <013401c25472$dbb40c10$0cc9a8c0@mail2world.com>
Reply-To: ti-math@lists.ticalc.org



> For a polynomial, put the function in a Y1. Go to lists and set up
> enough
> points to do a regression one less order than the function (e.g., if
> your poly
> is a cubic, you need three points). Set up L1 as, say, 0, 1, 2.
> set up L2 as derivatives of Y1 at 0, 1, 2.
> 
> Now, do a quadratic regression, Go to Y2 and install the equation (var,
> (5)stats,
> Eq, (7)equation. This is the derivative curve in symbolic.
> 
> 
> KrazyKyngeKorny
> 

If you use "QuadReg(L1,L2,Y2)" the equation is automatically
stores to Y2. Saves you the recalling of RegEq.

Rob van Wijk

-- 
GMX - Die Kommunikationsplattform im Internet.
http://www.gmx.net

References:

[TI-M] Re: Derivative on 83+

From: "raykornele" <raykornele@iVillage.com>