Re: question from amateur, why no demonstration for intersecting
- To: mathgroup at smc.vnet.net
- Subject: [mg84739] Re: question from amateur, why no demonstration for intersecting
- From: Steve <Ackms421 at gmail.com>
- Date: Fri, 11 Jan 2008 22:11:01 -0500 (EST)
- References: <fm4sbi$bsa$1@smc.vnet.net> <fm7dsv$etn$1@smc.vnet.net>
On Jan 11, 3:46=A0am, Jens-Peer Kuska <ku... at informatik.uni-leipzig.de>
wrote:
> Hi,
>
> may be it was too complicated to write down
>
> Manipulate[
> =A0 DynamicModule[{isec},
> =A0 =A0isec = {x, a1 + x*b1} /. Solve[{a1 + x*b1 == a2 + x*b2}, x][[=
1]];
> =A0 =A0Plot[
> =A0 =A0 {a1 + x*b1, a2 + x*b2},
> =A0 =A0 {x, -10, 10}, PlotRange -> {{-10, 10}, {-10, 10}},
> =A0 =A0 Epilog -> {AbsolutePointSize[8], Point[isec]}
> =A0 =A0 ]], {{a1, 1}, -2, 2}, {{b1, 0}, -5, 5}, {{a2, 1}, -2,
> =A0 =A02}, {{b2, 1}, -5, 5}
> =A0 ]
>
> what ever GMAT is ...
>
> Regards
> =A0 =A0Jens
>
> Steve wrote:
> > Hi,
>
> > I have begun working with mathematica 6 in order to improve my skills
> > with some math concepts. I am taking the GMAT soon, and I'm trying to
> > see the equations from all angles.
>
> > I've been looking for a demonstration that would allow me to
> > interactively see the relationship between two intersecting lines, but
> > no such demonstration exists. I am curious about this, since this is a
> > rather simple thing. Even a TI-82 will graph multiple lines.
>
> > As I'm sure it is just my unfamiliarity with the program, I am
> > wondering if any such template exists or if there is another way to do
> > this in the program.
>
> > Thanks a lot for your help
Yes, that is exactly what I was looking for, except for one thing. I
need actual values for x, y, b, and x-int to be displayed as the lines
move around. My goal is to understand how one element relates to
another. I guess having those values detected and displayed would be
the trick, huh?
GMAT is the Graduate Management Admissions Test, the entrance exam for
business school.
Thanks a lot for your help