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\usepackage[latin2]{inputenc}

\usepackage[intlimits]{amsmath}
\usepackage{amssymb}
\usepackage{pst-all}
\usepackage{pstricks-add}
\usepackage{multido}
\usepackage{calc}


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\newcommand*{\hop}{\bigskip\noindent}

\begin{document}

\psset{unit=2.4cm}
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\begin{center}
{\large{\bf Egy nagyon sz\'ep f\"uggv\'eny} (orrf\"uggv\'eny)}

\hop
\(f(x)=\sqrt[3]{x^3+1}-x\).\qquad Elemezz\"uk ki!

\hop
Forgassuk el 90 fokban, hogy orr legyen bel\H ole. :-)\\
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\psplot{0}{3.5}{x 3 exp 1 add 1 3 div exp x sub}
\psplot{-3.5}{-1}{0 0 x sub 3 exp 1 sub 1 3 div exp sub x sub}
\psplot{-1}{0}{1 0 x sub 3 exp sub 1 3 div exp x sub}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% add, div, mul, sub
% neg				  negates top number in stack
% mod				  remainder of division
% rand				  random integer in [0, 230]
% exp 				  Powers, not exponential
% dup				  This operate pushes a second copy of the topmost object on the operand stack.
% exch				  swaps top two elements in stack
% sin, cos, tan, acos, asin       in radians
% atan				  takes two arguments and returns the angle
% log, ln
% ceiling, floor, truncate, round
% sqrt                            square root
% abs                             absolute value
% fact                            for the factorial
% Sum                             for building sums
% IfTE                            for an easy case structure
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

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\end{center}
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