5-6
(ZOOM)(BOX)
B~BU
B~B,D~DU
• You must specify two different points for box zoom, and the two points cannot be on a
straight line vertically or horizontally from each other.
3. Drawing a Graph
You can store up to 20 functions in memory. Functions in memory can be edited, recalled, and
graphed.
I Specifying the Graph Type
Before you can store a graph function in memory, you must first specify its graph type.
1. While the Graph relation list is on the display, press (TYPE) to display the graph type
menu, which contains the following items.
•{Y=}/{r=}/{Parm}/{X=} ... {rectangular coordinate (Y=
f(x) type)}/{polar coordinate}/
{parametric}/{rectangular coordinate (X=
f(y) type)} graph
•{Y>}/{Y<}/{YP}/{YO} ... {Y>
f (x)}/{Y<f (x)}/{YPf (x)}/{YOf (x)} inequality graph
•{X>}/{X<}/{XP}/{XO} ... {X>
f(y)}/{X<f(y)}/{XPf(y)}/{XOf(y)} inequality graph
•{CONV}
•{
Y=}/{Y>}/{Y<}/{YP}/{YO}/{X=}/{X>}/{X<}/{XP}/{XO}
... {changes the function type of the selected expression}
2. Press the function key that corresponds to the graph type you want to specify.
I Storing Graph Functions
S To store a rectangular coordinate function (Y=)
Example To store the following expression in memory area Y1: y = 2x
2
– 5
(TYPE)(Y=) (Specifies rectangular coordinate expression.)
ATVD(Inputs expression.)
U (Stores expression.)
• A function cannot be stored into a memory area that already contains a function of a different
type from the one you are trying to store. Select a memory area that contains a function that
is the same type as the one you are storing, or delete the function in the memory area to
which you are trying to store.
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