Re: question from amateur, why no demonstration for intersecting
- To: mathgroup at smc.vnet.net
- Subject: [mg84718] Re: question from amateur, why no demonstration for intersecting
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Fri, 11 Jan 2008 04:40:32 -0500 (EST)
- Organization: Uni Leipzig
- References: <fm4sbi$bsa$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
Hi,
may be it was too complicated to write down
Manipulate[
DynamicModule[{isec},
isec = {x, a1 + x*b1} /. Solve[{a1 + x*b1 == a2 + x*b2}, x][[1]];
Plot[
{a1 + x*b1, a2 + x*b2},
{x, -10, 10}, PlotRange -> {{-10, 10}, {-10, 10}},
Epilog -> {AbsolutePointSize[8], Point[isec]}
]], {{a1, 1}, -2, 2}, {{b1, 0}, -5, 5}, {{a2, 1}, -2,
2}, {{b2, 1}, -5, 5}
]
what ever GMAT is ...
Regards
Jens
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
>