Hi Hans,

Thank you very much for the new features! I haven't yet read all the mag-1104-mkiv.pdf where you explain some of them, but after modifying one of your examples, I noticed that some funtions get a strange graph, which is probably due to the fact that metafun2 is interpolating between points in a way which is not correct.
For instance, in the following example (which is a slight modification of yours), the curve drawn is not a graph, in the sense that for some values of x it seems to be two or more values of y.

How does metafun 2 traces the curve between two discretization points?

Best regards: OK

%%% begin draw-2.tex

\starttext
\startMPcode{doublefun} 
draw lmt_function [
	xmin =  1.0, xmax = 2.5066283, xstep = .1,
	ymin = -2, ymax =  2,
%	xticks = "bottom", xsmall = 80, xlarge = 20, 
%	yticks = "left", ysmall = 40, ylarge = 4,
	code = "1.5 * math.sin(2*x^2)", 
	xlabels = "yes",
	ylabels = "yes",
	ycaption = "\strut\tfd \rotate[rotation=90]{vertical}",
	xcaption = "\strut\tfd horizontal",
	pointsymbol = "dot", pointsize = 4, pointcolor = "orange",
	sx = 2mm, sy = 4mm, linewidth = .025mm, offset = .1mm, 
	]
	xsized 8cm ;
\stopMPcode

\stoptext

%%% end draw-2.tex