HP 50g: Conic graphing - trace?



I like how the 50g can graph equations with X and Y on the same side
using the Conic plot mode. However, when viewing such a graph, the
only options at the bottom of the screen are ZOOM and (X,Y), e.g.
there is no option to TRACE (the F3 and F4 softkeys correspond to
blank labels). Is there any other way to graph such equations on the
50g and be able to trace them? Also, it would be even better if the F4
- FCN menu was available to find tangent lines and such.

For example, a simple equation of this form might look like X*Y^2 -
X^3*Y = 6. Even though this isn't a conic, the conic mode still works
because X and Y are both on the same side of the equation.

Thanks.

S.C.

.



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