Drawing A Graph - Casio FX-7400GII - SOFTWARE VERSION 2-00 User Manual

(ZOOM)
~
~ ,
• 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.
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
menu, which contains the following items.
• {Y=}/{r=}/{Parm}/{X=} ... {rectangular coordinate (Y=
{parametric}/{rectangular coordinate (X=
• {Y>}/{Y<}/{Y }/{Y } ... {Y>
• {X>}/{X<}/{X }/{X } ... {X>
• {CONV}
• { Y=}/{ Y>}/{ Y<}/{ Y }/{ Y }/{ X=}/{ X>}/{ X<}/{ X }/{ X }
... {changes the function type of the selected expression}
2. Press the function key that corresponds to the graph type you want to specify.
Storing Graph Functions
To store a rectangular coordinate function (Y=)
Example
• 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.
(BOX)
~
f x
( )}/{Y<
f y
( )}/{X<
To store the following expression in memory area Y1:
(TYPE) (Y=) (Specifies rectangular coordinate expression.)
(Inputs expression.)
(Stores expression.)
(TYPE) to display the graph type
f x
( ) type)}/{polar coordinate}/
f y
( ) type)} graph
f x f x f x
( )}/{Y ( )}/{Y ( )} inequality graph
f y f y f y
( )}/{X ( )}/{X ( )} inequality graph
5-6
y x 2
= 2 – 5