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Casio fx-82AR X Manual

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• 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 2, 2 to polar coordinates (Angle
Unit: Degree)
(MathI/MathO)
(Pol)2(,)2
r=2, θ=45
To convert polar coordinates
2, 45° to rectangular coordinates (Angle
Unit: Degree)
(MathI/MathO)
(Rec)2(,) 45
x=1, y=1
x!: Factorial function.
(5 + 3) ! = 40320
53(x!)
40320
Abs: Absolute value function.
|2 − 7| × 2 = 10
(MathI/MathO)
272
10
(LineI/LineO)
272
10
Ran#: Function that generates a pseudo random number in the range of
0.000 to 0.999. The result is displayed as a fraction when MathI/MathO is
selected for Input/Output on the setup menu.
To obtain random three-digit integers
1000(Ran#)
459
(The result differs with each execution.)
RanInt#: Function that generates a pseudo random integer between a
specified start value and end value.
To generate random integers in the range of 1 to 6
(RanInt) 1(,) 6
2
(The result differs with each execution.)
nPr, nCr: Permutation (nPr) and combination (nCr) functions.
To determine the number of permutations and combinations possible when
selecting four people from a group of 10
Permutations:
10(nPr) 4
5040
Combinations:
10(nCr) 4
210
Rnd: Using the Rnd function causes decimal fraction values of the
argument to be r
ounded in accor
dance with the current Number Format
setting. For example, the internal and displayed result of Rnd(10 ÷ 3) is
3.333 when the Number Format setting is Fix 3. Using the Norm 1 or Norm
2 setting cause the argument to be rounded off at the 11th digit of the
mantissa part.
To perform the following calculations when Fix 3 is selected for the number
of display digits: 10 ÷ 3 × 3 and Rnd(10 ÷ 3) × 3 (MathI/DecimalO)
(SETUP)(Number Format)(Fix)
1033
10.000
(Rnd) 1033
9.999
14
… 15 …


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