Error: Plotting error, empty plot
This error occurs when you attempt to have Maple draw a plot that has nothing in it (no points, curves or surfaces to be plotted). Here are some common ways that this can arise:
Examples:
Expression with non-real values:
> plot(sqrt(x), x = -2 .. -1);
Plotting error, empty plot
Additional parameters:
> plot(x^2+y, x = 0 .. 1);
Plotting error, empty plot
Independent variable not specified:
> plot(x^2+1, 0 .. 1);
Plotting error, empty plot
See also: plot , Plotting functions vs expressions
Maple Advisor Database R. Israel 1997