Re: Plot a number line
- To: mathgroup at smc.vnet.net
- Subject: [mg79733] Re: [mg79687] Plot a number line
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Fri, 3 Aug 2007 06:22:59 -0400 (EDT)
- Reply-to: hanlonr at cox.net
numberLine[xmin_, xmax_, step_: 1] := Module[
{min = Floor[xmin], max = Ceiling[xmax]},
Graphics[{Arrowheads[{-0.03, 0.03}],
Arrow[{{min - 2, 0}, {max + 2, 0}}],
{Line[{{#, -0.2}, {#, 0.2}}],
Text[#, {#, -0.3}, {0, 1}]} & /@
Range[min, max, step]},
ImageSize -> 500]];
numberLine[-10, 10]
numberLine[-10, 10, 2]
Bob Hanlon
---- Diana <diana.mecum at gmail.com> wrote:
> Math folks,
>
> I am trying to plot just an x axis number line with varying end
> points.
>
> For example, I would like a number line with starting and ending
> arrows pointing to negative and positive infinity, with the numbers
> -10, -9, ..., 8, 9, 10 printed on the line. I would like just the tick
> marks at integer markings. This is meant to be a template for students
> to graph the solution set to an inequality on it.
>
> Can someone help?
>
> Thanks,
>
> Diana M.
>
>