Re: TI-85 Probs
[Prev][Next][Index][Thread]
Re: TI-85 Probs
On Thu, 11 Sep 1997 15:20:40 -0700, Padrote@pacbell.net wrote:
>Trent Krummel wrote:
>>
>> I have two questions for all you TI-85 wizards...first how would I
>> graph a horizontal line?..Is thier a way to make the markers when
>> graphing with SCAT bigger than a single pixel?
>ok, I'm new to the group but not to the ti, so pardon me if my answer is
>inadequate. As to how to graph a horizontal line on the ti, you can't.
>the ti graphs functions. A horizontal line is not a function, the best
>you can do is have something with a vertical aysmptote. I know that's
>not really any consolation, but i believe it to be the truth. If you
>want to graph anything else that isn't a function, you must put it into
>function form ( f(x) ) and then make a pos. f(x) and a neg. f(x) in
>cases like hyperbola's, and ellipses. There are programs that will do it
>for you.
Hmmm, really, I hear this a lot. Math is in a really bad state these
days.
1. The TI-85 has a special function for drawing lines. look up Line(
in your reference manual.
2. Take a wild guess at what the function y = c looks like, where c is
the difference between your HORIZONTAL line and the x-axis. ie: y=1
will draw a horizontal line that goes through y=1. duh.
3. the only line you CAN'T DRAW using y= is a vertical line. So TI was
so kind as to give us a function that does it. look up Vert in your
reference manual. it draws vertical lines. ie: Vert 5 will draw a
vertical line going through x = 5.
Follow-Ups:
References: