50g

When trying http://www.adictoshp.org/node/867 
<http://www.adictoshp.org/node/867> I get the following;


You don't have permission to access /index.php on this server.

Additionally, a 403 Forbidden error was encountered while trying to use 
an ErrorDocument to handle the request.



Tim wrote:
>
> > Can someone send me a function and the instructions of what I had to 
> do to get that functions graph in 3D?
>
> Give it a function defined using two variables, such as X an Y.
>
> x^2+sin(y)
>
> For some fancy graphs, plus imagaes of the inputs, look here: 
> http://www.adictoshp.org/node/867 <http://www.adictoshp.org/node/867>
>
> TW
>
>