title: Can gnuplot produce scatter plots?
body: <p>I would like to display the image of two real valued analytic functions f,g (of two real variables x,y each) in a two dimensional plot. I.e. I want to sample (x,y) and make gnuplot display a dot (f(x,y),g(x,y)) in the two dimensional f,g plane for each sampling point. Of course I can sample (x,y) in an external program and output a 2 column data file to produce this plot. It does not even take much more effort to do it. I am asking mainly because gnuplot might have builtin routines to do the sampling of (x,y) in a more clever way than a two-dimansional grid with equal spacings.</p>