This attribute specifies the plotting
tolerance (or resolution) to be used for the graphical output produced by a Plot
Smaller values will result in smoother and more accurate curves being drawn, but may
slow down the plotting process. Conversely, larger values may speed up the plotting
process in cases where high resolution is not required.
The Tol value should be given as a fraction of the minimum dimension of the plotting
area, and should lie in the range from 1.0e-7 to 1.0. By default, a value of 0.01 is