Here is a walkthrough, based on my 48GX. Suppose you are using the polynomial root solver on the 48GX. You want the roots of x^2-4x-5. So you enter [1 -4 -5] and press SOLVE. The 48GX returns [-1 5].
If you exit to the stack, you have "Roots: [-1 5]" on level 1.
Now hit the "H" key (for PRG), then the "C" key (for TYPE), and then the "A" key (for OBJ->). The useful OBJ-> command breaks down whatever object is on the stack. In this case, it puts the array [-1 5] on stack level 2, and the text "Roots" on stack level 1.
You presumably don't need the text, so press the backspace (<-) key to delete it. This drops [-1 5] to level 1.
Now hit OBJ-> again for further breakdown. You get { 2 } on level 1 (which was the number of elements in the array), and the two roots on levels 2 and 3. You can delete the { 2 }, leaving your roots on levels 1 and 2.
You can also invoke OBJ-> by hitting the "alpha" key twice (to lock it), followed by O, B, J, right-shift, zero, and ENTER. I prefer the menu method (PRG TYPE OBJ->) described above.
Edited: 11 Dec 2006, 3:42 p.m.