Casio fx-82AU PLUS User Manual

E-19
Precision
In general, p1 at the 10th digit for a single
calculation. Precision for exponential
display is p1 at the least significant digit.
Errors are cumulative in the case of
consecutive calculations.
Function Calculation Input Ranges and Precision
Functions Input Range
sin
x
DEG
0  \
x\ 9 s10
9
RAD
0  \
x\ 157079632.7
GRA
0  \
x\ 1 s10
10
cosx
DEG
0  \
x\ 9 s10
9
RAD
0  \
x\ 157079632.7
GRA
0  \
x\ 1 s10
10
tanx
DEG
Same as sin
x, except when \x\ = (2n–1) s90.
RAD
Same as sin
x, except when \x\ = (2n–1) sP/2.
GRA
Same as sin
x, except when \x\ = (2n–1) s100.
sin
–1
x
0  \x\ 1
cos
–1
x
tan
–1
x
0  \x\ 9.999999999 s10
99
sinhx
0  \x\ 230.2585092
cosh
x
sinh
–1
x
0  \x\ 4.999999999 s10
99
cosh
–1
x
1  x 4.999999999 s10
99
tanhx
0  \x\ 9.999999999 s10
99
tanh
–1
x
0  \x\ 9.999999999 s10
–1
logx/lnx
0  x 9.999999999 s10
99
10
x
–9.999999999 s10
99
 x  99.99999999
e
x
–9.999999999 s10
99
 x  230.2585092
'
x
0  x  1 s10
100
x
2
\x\ 1 s10
50
x
–1
\x\ 1 s10
100
; x & 0
3
x
\x\ 1 s10
100
x!
0 
x  69 (x is an integer)
nPr
0 
n  1 s10
10
, 0  r  n (n, r are integers)
1  {n!/(n–r)!}  1 s10
100
nCr
0 
n  1 s10
10
, 0  r  n (n, r are integers)
1  n!/r!  1 s10
100
or 1  n!/(n–r)!  1 s10
100
Pol(x, y)
\
x\, \y\ 9.999999999 s10
99
x
2
+
y
2
9.999999999 s10
99
Rec(r, θ)
0 
r 9.999999999 s10
99
θ: Same as sinx

Casio fx-82AU PLUS Specifications

General

Type	Scientific Calculator
Number of Functions	252
Power Source	Battery
Weight	100 g
Display Digits	10 + 2 digits
Memory	9 variables
Display	Dot matrix
Battery Type	1 x LR44
Power Supply	Battery
Compliance	Australian school curriculum