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u To change the type of a function *
1
1. While the Graph relation list is on the display, press f or c to move the highlighting
to the area that contains the function whose type you want to change.
2. Press 3 (TYPE)5 (CONV).
3. Select the function type you want to change to.
Example To change the function in memory area Y1 from
y = 2 x
2
– 3 to
y < 2 x
2
– 3
3 (T YPE)5 (CONV)3 (
' Y<) (Changes the function type to “Y<”.)
u To delete a function
1. While the Graph relation list is on the display, press f or c to move the highlighting
to the area that contains the function you want to delete.
2. Press 2 (DEL) or D .
3. Press 1 (Yes) to delete the function or 6 (No) to abort the procedure without deleting
anything.
5-3-7
Drawing a Graph
*
1
The function type can be changed for
rectangular coordinate functions and
inequalities only.
# Parametric functions come in pairs (Xt and Yt).