Casio fx-7400G PLUS Graphing - Manual (Page 6)

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Chapter 4 Graphing
3. Graph Function Operations
You can store up to 10 functions in memory. Functions in memory can be edited,
recalled, and graphed. The types of functions that can be stored in memory are:
rectangular coordinate functions, parametric functions, and inequalities.
k k k k k Specifying the Graph Type
Before you can store a graph function in memory, you must first specify its graph
type.
1. While the Graph Function Menu is on the display, press [ to display a Graph
Type Menu.
[
1 (Y =) ......... Rectangular coordinate graph
2 (Parm) ...... Parametric graph
[
1 (Y >) ......... Y > f ( x ) inequality
2 (Y <) ......... Y < f ( x ) inequality
3 (Y ≥) ......... Y > f ( x ) inequality
4 (Y ≤) ......... Y < f ( x ) inequality
Press [ to return to the previous menu
2. Press the function key that corresponds to the graph type you want to specify.
k k k k k Storing Graph Functions
u uu u uTo store a rectangular coordinate function (Y =)
Example To store the following expression in memory area Y1:
y = 2 x 2 – 5
[1(Y =)
(Specifies rectangular coordinate
expression.)
c Tx-f
(Inputs expression.)
w
(Stores expression.)
1 2 3 4 [
1 2 3 4 [