Graphing options

[akmon]

I have tried to explore this feature with an easy function: y=x^2
It behaves strange, even it soft reseted. Try it:
Press num key to go to the tables. Fix Trace Edge. If you press Y softkey the results are OK, but as you move the table with your finger and release from the screen, and the inertia movement acts, some results disapear on table.
And if you press X softkey, and you search the value of Y when X=20 for example, it does not show the result. It´s like the only results showed are those limited by the graphing limits. If you press zoom+ or zoom- on the plot, it modifies the range of values on the table.

There´s something strange.