Sharp el-9900c Guía De Operación
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Chapter 3: Basic Calculations — Basic Keyboard
b
Enters a fraction, setting the preceding number as its numerator.
* If the calculator is set to one-line mode, then “ ¬ ” will be entered
instead. For example, “2 ¬ 5” indicates “
2
5
5
”.
Example
• Calculate
2
5
5
+
3
4
4
.
2
b 5 ' + b
3
' 4 ' E
a
Enters an exponent, setting the preceding number as its base.
Example
• Raise 4 to the 5th power. (= 1024)
4
a 5 E
Note:
When no base value is entered, “a
b
” will be entered with both
number areas left blank.
C a ; 4 ' 5 E
When calculating x to the power of m-th power of n, enter as
follows;
• Calculate 2
32
(= 512)
2
a 3 a 2 E
The above calculation is interpreted as 2
32
= 2
9
.
If you wish to calculate (2
3
)
2
= 8
2
, press
( 2 a 3 '
) a 2 E.
,
Enters a comma “ , ” at the cursor. A comma is required in some
of the MATH functions. For more information, refer to the next
section “Calculations Using MATH Menu Items” in this chapter.
R
Stores a number in a variable.
Example
• Let A = 4, and B = 6.
Calculate A
+
B.
4
R A A E
6
R A B E
A A + A B E