Something strange happens when you try to plot this:

implicitplot([y = 1/18*(3*x+1)^2/x], x = 1/4 .. 1/2, y = 0..10);

If you change the y range so that it is, say 1, the wabbles in the function become smaller, but they are still their.

Why the wables?  I am using Maple 9.
 


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