Sharp EL-9900 Operation Manual page 49

x
Second
functions
%
x
Note:
_
Note:
+
Chapter 3: Basic Calculations — Basic Keyboard
Enters an "x", an unknown variable. Use this key when working
with graph equations. Refer to Chapter 4 "Basic Graphing
Features" to learn how to use this feature.
To access the second function of a key (printed above the keys in
yellow), press and release @, then press the key you want to
use.
Set the preceding value as a percentage.
Example
• Get 25% of 1234.
1 2 3 4 | 2 5 @
% E
* Percentage must be a positive
value equal to or less than
100.
-
1
Enters "x ", and returns an inverse by raising a value to the
power. The inverse of "5", for example, is "
Example
-
• Raise 12 to the 1 power. (= 0.083333333)
1 2 @ x E
When no base number is entered, "x
blank.
C @ x ;1 2 E
a
Enters " ".
Example
th
• Bring 4 to the 5
5 @ _ 4 E
When no depth of power is entered, "
number areas left blank.
C @ _ 5 ' 4 E
Enters a square root symbol.
Example
• Obtain the square root of 64. (= 8)
@ + 6 4 E
-
1
root. (= 1.319507911)
1
".
5
" will be entered, with "x" left
a
" is entered, with both
-
1
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