Casio fx-250HC User Manual page 31

Casio fx-250hc: user guide
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kSpecifications
Power supply : Two AA-size manganese dry batteries
Battery Life:
Power
Consumption:
Input Ranges:
Functions
sinx
cosx
tanx
–1
sin
x
–1
cos
x
–1
tan
x
sinhx
coshx
tanhx
–1
sinh
x
–1
cosh
x
–1
tanh
x
logx/lnx
x
10
(UM-3 or R6P (SUM-3))
Approximately 9,000 hours continuous
operation on type UM-3, 11,000 hours
continuous operation on R6P(SUM-3)
0.0004W
(DEG) x 9 10
(RAD) x 5 10
(GRA) x 1 10
1
x
x  1
10
230.2585092
x
x  1
10
100
x  5
10
x  5
1
x  1
x  1
–99
1
10
 x  100
100
–1 10
Input Range
9
7
rad
10
grad
100
For sinh and tanh,errors are
cumulative and accuracy is af-
fected at a certain point when
x=0.
99
99
10
100
10
— 29 —
However, for tan x:
x ≠ 90(2n 1):DEG
2·(2n 1):RAD
x ≠
x ≠ 100(2n 1):GRA

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