Entering A Function (See Page 98 For Details.) - Sharp EL-9650 Operation Manual

• The following briefly explains the items on the FORMAT menu.
A ------ : To display the list of the settings of the mode
B CURSOR : To set the graph coordinate system
C EXPRES : To set whether or not to display the graph equation on the screen
D Y' : To set whether or not to display the graph slope (dy/dx) on the
screen
E STYLE1 : To specify line graph or dot graph
F STYLE2 : To set the graph drawing method
G TYPE : To set the axis for sequence coordinate graphing
(3) Entering a function
1. Press .
As shown on the right, the screen prompts for the
inputs of Y1 to Y8. (The calculator can store up to 10
functions. To display Y9 and Y0, scroll the screen to
display the next page. To input functions in Y9 and Y0,
use ≥ to move the cursor to the input position.)
2
2. Enter "–(x + 2) + 5" in "Y1".
3. When is pressed to display the above screen, the cursor is located at [Y1]. This
indicates that the calculator is ready to accept the input for Y1.
4. On this screen, operate the following keys.
Press — (
When any key is pressed, the "=" sign next to "Y1" is highlighted and changes to
" ". The appearance of the sign indicates whether the function will be made into a
=
graph or not when
: Graph to be drawn.
=
= : Graph not to be drawn.
* In the rectangular coordinate graph mode,
Å X to input "X".
5. When ® is pressed, the cursor automatically
moves to [Y2]. The screen will look like the one shown
on the right.
(See page 98 for details.)
+ 2 )
is pressed.
81
GRAPHING FUNCTIONS
+ 5 ®.
enters "X". This eliminates the need to press