Question: plot


I am trying to plot q2:= (x) -> x*exp(x^2)*(1-erf(x)); for 0 <><>plot(q2(x),x=.1..10); then the resulting plot is incorrect. In reading other posts I get the impression that one needs to somehow prevent the plot routine(s?) from following their default behavior of refusing to compute with the number of digits specified by Digits; they evidently try to use hardware precision instead. But I don't understand how one forces the plot routine(s!) to compute with some precision I specify. I would like to fully understand how to force the plot routine(s!) to compute with arbitrary precision, since I will soon be attempting more plots with other functions (some in 3d) which will need much more than hardware precision for their computation.
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