Casio fx-82EX User Manual page 14

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*2 Depending on the calculation mode, you should press .
, : Exponential functions.
e
5
× 2 = 296.8263182
(MathI/MathO)
(LineI/LineO)
log: Logarithmic function. Use  to input log
the default setting if you do not input anything for a.
log
1000 = log 1000 = 3
10
log
16 = 4
2
The  key also can be used for input, but only while MathI/MathO or
MathI/DecimalO is selected for Input/Output on the setup menu. In this
case, you must input a value for the base.
log
16 = 4
2
ln: Natural logarithm to base e.
ln 90 (= log
90) = 4.49980967
e
, , , , , x
2
3
x
, x
2+2
(1 + 1)
= 16
2
3
(5
)
= 15625
32
= 2
5
(MathI/MathO)
(LineI/LineO)
2 × 3 = 3 2 = 4.242640687 . . .
(MathI/MathO)
(LineI/LineO)
Pol, Rec: Pol converts rectangular coordinates to polar coordinates, while
Rec converts polar coordinates to rectangular coordinates.
• Specify the angle unit before
performing calculations.
• The calculation result for r and θ
and for x and y are each
assigned respectively to
variables x and y.
• Calculation result θ is displayed
in the range of -180° < θ ≦ 180°.
To convert rectangular coordinates
Unit: Degree)
(MathI/MathO)
To convert polar coordinates
Unit: Degree)
(MathI/MathO)
x!: Factorial function.
(5 + 3) ! = 40320
Abs: Absolute value function.
|2 − 7| × 2 = 10
(MathI/MathO)
(LineI/LineO)
(π)2(Angle Unit)(
() 52
() 52
-1
: Powers, power roots, and reciprocals.
(Pol)2(,)2 r=2, θ=45
(Rec)2(,) 45 x=1, y=1
2(,) 16
90
1122
() 532
5() 32
23
23
2, 2 to polar coordinates (Angle
2, 45° to rectangular coordinates (Angle
53(x!)
272
272
13
r
b as log (a, b). Base 10 is
a
1000
216
5
90
)
296.8263182
296.8263182
3
4
4
4.49980967
16
15625
2
2
3 2
4.242640687
40320
10
10

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