Casio fx-991ES PLUS - Manual (Page 39)

E-38
25: atm Pa 26: Pa atm 27: mmHg Pa 28: Pa mmHg
29: hp kW 30: kW hp 31: kgf/cm 2 Pa 32: Pa kgf/cm 2
33: kgf • m J 34: J kgf • m 35: lbf/in 2 kPa 36: kPa lbf/in 2
37: °F °C 38: °C °F 39: J cal 40: cal J
Conversion formula data is based on the “NIST Special Publication 811
(1995)”.
Note: The J
cal command performs conversion for values at a temperature
of 15°C.
Calculation Ranges, Number of Digits,
and Precision
The calculation range, number of digits used for internal calculation, and
calculation precision depend on the type of calculation you are performing.
Calculation Range and Precision
Calculation Range p1 s 10 –99 to p9.999999999 s 10 99 or 0
Number of Digits for Internal
Calculation
15 digits
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
RAD 0 \ x \
GRA 0 \ x \ 10
cos x
DEG 0 \ x \ 9
RAD 0 \ x \
GRA 0 \ x \ 10
tan x
DEG Same as sin x , except when \ x \ = (2 n –1) s
RAD Same as sin x , except when \ x \ = (2 n –1) s
GRA Same as sin x , except when \ x \ = (2 n –1) s
sin –1 x
0 \ x \
cos –1 x
tan –1 x 0 \ x \ 99
sinh x
0 \ x \
cosh x
sinh –1 x 0 \ x \ 99
cosh –1 x 1 x 99
tanh x 0 \ x \ 99