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<H2><A NAME="SECTION040145000000000000000"></A>
<A NAME="commands_plot_parametric"></A><A NAME="commands_splot_parametric"></A><A NAME="plot_parametric"></A><A NAME="splot_parametric"></A>
<BR>
Parametric
</H2>
When in parametric mode (<B>set parametric</B>) mathematical expressions must be
given in pairs for <B>plot</B> and in triplets for <B>splot</B>.
<P>
Examples:
<BR>
<PRE>
plot sin(t),t**2
splot cos(u)*cos(v),cos(u)*sin(v),sin(u)
</PRE>
<BR>
<P>
Data files are plotted as before, except any preceding parametric function
must be fully specified before a data file is given as a plot. In other
words, the x parametric function (<B>sin(t)</B> above) and the y parametric
function (<B>t**2</B> above) must not be interrupted with any modifiers or data
functions; doing so will generate a syntax error stating that the parametric
function is not fully specified.
<P>
Other modifiers, such as <B>with</B> and <B>title</B>, may be specified only after the
parametric function has been completed:
<P>
<BR>
<PRE>
plot sin(t),t**2 title 'Parametric example' with linespoints
</PRE>
<BR>
<P>
See also
<P>
http://www.gnuplot.info/demo/param.html<TT>Parametric Mode Demos.
</TT>
<P>
<BR><HR>
<ADDRESS>
2010-08-17
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