Re: TI-M: TIM:Stupid question(?)
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Re: TI-M: TIM:Stupid question(?)
Well I assume when you are talking about the slowness you are referring to
using nDeriv (numerical derivative). If you calculate the derivative
symbolically and input that into your graphing calculator, you can get
a lot better speed. If you are using a sin function, the derivative
is the cosine. For y=sin(x) then the slope at point x is given by
cos(x).
--
Andy Selle <aselle@ticalc.org>
Programming and System Administration, Survey Editor, Accounts Manager
the ticalc.org project - http://www.ticalc.org/
On Thu, 26 Oct 2000 Rgdtad@aol.com wrote:
>
> Hi, first I am going to give you a little background. I am in pre-cal,
> and the engineering team at my school. My math teacher is already somewhat
> mad at me for distributing MATH programs of MY design in class, so I am
> almost afraid to ask her this.
> I know that this is a stupid question, but I was wondering how I could
> define a hill that could logically exist (e.g., not 1/x, but maybe a sin
> function) and then get the slope of that hill at any given point. I know
> about derivatives, but they are awfully slow and I am looking for something a
> bit faster.
> I am using a TI-86, and the purpose of this model is to design a 'soapbox
> derby' car.
>
>
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