56
Chapter 3: Manual Calculations
I
Enters a natural logarithm
function.
Example
• CalculateIn
e
4
.
I
@
@
4
E
.
@
EnterstheEulerNumber
e
(2.71…) to a power. The cursor will then
be placed at the exponent.
Example
• Obtainavalueof
e
3
.
@
@
3
E
.
y
Squarestheprecedingnumber.
Example
• Obtaintheanswerto12
2
. (= 144)
12
y
E
Note: When no base number is entered, the base number area will be left
blankandjusttheexponentappear.
C
y
;
1 2
E
x
Enters “x
-1
”,andreturnsaninversebyraisingavaluetothe-1
power.Theinverseof“5”,forexample,is“
5
”.
Example
• Raise12tothe-1power.(=0.083333333)
1 2
@
x
E
Note: When no base number is entered, “x
-1
”willbeentered,with“x”left
blank.
C
@
x
;
1 2
E
d
Enters a mixed number.
Example
• Enter
5
6
4
4
d
5
'
6