[pstricks] two minor questions

[Herbert Voss]

Am 06.08.2010 16:27, schrieb Zbigniew Nitecki:
> 1. I realize this is probably very difficult to implement, but is there a 3d equivalent of \psplotImp?

no

> I would like if possible to plot (part of) the surface defined by
> 	x^3 y^2 z+x^2 y^3 z + x y z^3 =30 

if the equation is correct, than you can get a form like z^3+z+a=0
which can be solved.

> near the point (-2,3,1).  The point is that I can't (ie, don't know how to) give an explicit formula for one of the variables
> in terms of the other two.
> 
> 2. Really a LaTeX question:  is there a way to introduce a line break inside a caption?  That is, using the standard float environment(s)
>> \begin{figure}[htbp]
>> \begin{center}
>> 	\begin{pspicture(x0,y0)(x1,y1)
>> 	...
>> 	\end{pspicture}
>> \caption{<Very long caption, perhaps with a formula,\\ which gets broken by LaTeX in an unfotunate way>}
>> \label{<figurelabel>}
>> \end{center}
>> \end{figure}

> 
>  is there a way to introduce a particular line break in the caption?  Using a double backslash (as indicated, for example,
> in the code above) creates a runaway argument error message.  (some version of \hbox?)

use \newline instead of \\

Herbert