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kSpecifications
Power Supply :
fx-82SOLAR/fx-260SOLAR : Solar cell
fx-85B/fx-280 : CASIO TWO-WAY POWER System: solar
cell plus one G13 Type (SR44 or LR44)
battery
Battery Life (fx-85B/fx-280) :
Approximately 3 years (1 hour use per day)
on LR44/SR44 battery
Input Ranges :
tan
–1
x
sinhx
coshx
tanhx
sinh
–1
x
cosh
–1
x
ȊxȊ 1 ҂
10
100
ȊxȊͨ 230.2585092
ȊxȊ 1҂
10
100
For sinh and tanh,errors
are cumulative and ac-
curacy is affected at a
certain point when x=0.
ȊxȊ 5 ҂
10
99
1ͨ x 5 ҂
10
99
sinx
cosx
tanx
sin
–1
x
cos
–1
x
ȊxȊͨ 1
(DEG) ȊxȊ9҂10
9
(RAD) ȊxȊ5҂10
7
rad
(GRA) ȊxȊ1҂10
10
grad
However, for tan x:
ȊxȊ≠ 90(2nѿ1):DEG
ȊxȊ≠ ր2·(2nѿ1):RAD
ȊxȊ≠ 100(2nѿ1):GRA
Functions Input Range