Sharp EL-9900 - Manual (Page 26)

16
Chapter 2: Operating the Graphing Calculator
Example
Enter “ 65536
4 ×
8
3 ” in the Calculation screen. Jump the cursor
to the beginning of the expression (just for this exercise), then
press E to calculate.
1. Press #, then C to clear the display.
2. Enter 4 for the root’s depth, then press @ _.
The root figure is entered, with the cursor automatically placed
below the figure.
For detailed instructions of how to use the @ key, refer to
“Second Function Key” and “ALPHA Key” in this chapter.
3. Enter 65536.
At this moment, the cursor is still placed under the root figure.
4. Press ' to move the cursor out of the area, then enter
| at the cursor.
5. Press @ _ again. Notice that the cursor is automati-
cally placed so that you can specify the depth of this root
figure. Type 3, }, and 8.
6. Press E to obtain the
answer.
Mode Symbol Remarks
Normal mode The appearance of the cursor pointer
may vary according to the mode or
When A is pressed position. The major shapes and the
definitions are as follows:
When @ is pressed : Insert mode
: Overwrite mode
* , and appear at the insertion point within the functions such as a/b and a .
The cursor also displays information regarding the calculator’s
input method. See the following diagram.
Cursor appear-
ance and input
method