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Re: 3DPlot in Mathematica 6

On Aug 16, 2007, at 10:50 PM, Dr. Van Nostrandt wrote:

> Hi,
> I use Mathematica 6 on a PC (Intel Celeron CPU 2.6 GHz, 256 RAM)  
> under Ubuntu 7.04.
> When I run the command Plot3D[f,options] it doesn't display me the  
> function graph if f has a complicated form. If f it's enough  
> simple, the function is displayed.
> For example the command Plot3D[Sin[x+Sin[y]],{x,-10,10},{y,-10,10}]  
> shows me the graph, but already for
> Plot3D[2 [Sin[x+Sin[y]]],{x,-10,10},{y,-10,10}] I can't see it,  
> just the 3D box, where should be the graph.
> Does anyone know the reason?
> Thank You in advance!
The problem is misuse of brackets. Use parenthesis

Plot3D[2 (Sin[x+Sin[y]]),{x,-10,10},{y,-10,10}]

                  ^                     ^

Cheers ... Syd Geraghty

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