Sharp EL-9900 User Manual

Page 63

Chapter 4: Basic Graphing Features — Basic Keyboard

The expression can be represented as a graph.

= :

The expression cannot be drawn as a graph.

• Move the cursor pointer to the “=” sign and press

E to

change between to-draw and not-to-draw.

Note:

To switch the window back to the calculation screen, simply press

the

# key.

Draws a full-screen graph based on the equation(s) entered in the

Graph Equation window. To cancel the graph drawing, press
O.

Note:

If no equations are entered in the Graph equation window, only

the vertical (Y) and horizontal (X) axis will be displayed upon

pressing the

G key.

Displays the graph values in a table. The default sample incre-

ment value of the graph’s X axis is “1”.

Displays the ZOOM menu. Within the ZOOM menu, various

preferences can be set for the graph appearance on zooming in/

out .

The menu items with each function and the sub-menu items are

described below:

A ZOOM

There are a myriad of tools under this menu item, by which the

graph can be zoomed in/out in various styles. Press “A” within the

ZOOM menu to select this menu item.

1 Auto

According to the WINDOW setup, the graph will be

zoomed in by adjusting the “Ymin” (the minimum Y

value) and “Ymax” (the maximum Y value) according to

the “Xmin” (the minimum X value) and “Xmax” (the

maximum X value). When this item is selected, the

graph will automatically be redrawn.

Note:

The “Auto” sub-menu item is directly affected by how the WIN-

DOW items are set up. Refer to the

W key section in this

chapter to learn how to set up the Xmin and Xmax items.