# Re: plot graph

```Irene Cheung wrote:
>
> I have a set of solutions. I partitioned them 3 by 3 :
> {{x1,y1,z1},{x2,y2,z2},{x3,y3,z3},{x4,y4,z4},...}. I want to plot a 3D
> graph.  I know ListPlot[] can treat {{x1,y1},{x2,y2},...}. But
> ListPlot3D[] does not  give the graph I want. What is wrong ? I am
> using Mathematica 3.0 .
>
> Give an example, I think
> ListPlot3D[{{1,10,100},{2,20,200},{3,30,300},{4,40,400}}] should show a
> straight line. But it doesn't.
>
> Thanks for help.
> David Chik. ( email : h9505865@hkusua.hku.hk )

David:

ListPlot3D[{{1,10,100},{2,20,200},{3,30,300},{4,40,400}}]

is giving a surface apecified by heights 1 at {1,1}, 2 at {1,2}, 3 at
{1,3} etc. This is the same kind of specification as is used in
SurfaceGraphics, given by Plot3D for example.

The line that I think you are expecting is given by

Show[Graphics3D[Line[{{1,10,100},{2,20,200},{3,30,300},{4,40,400}}]]]

--
Allan Hayes
Training and Consulting
Leicester, UK
hay@haystack.demon.co.uk
http://www.haystack.demon.co.uk
voice: +44 (0)116 271 4198
fax: +44 (0)116 271 8642

```

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