Sharp EL-9900 - Manual (Page 48)

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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
”.
Example
• Calculate
2
5
+
3
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