Casio fx-570ES PLUS, fx-991ES PLUS Calculation Ranges, Number of Digits, and Precision, Calculation Range and Precision, Function Calculation Input Ranges and Precision, Note:, Functions

25: atm Pa	26: Pa atm	27: mmHg Pa	28: Pa mmHg
29: hp kW	30: kW hp	31: kgf/cm2 Pa	32: Pa kgf/cm2
33: kgf • m J	34: J kgf • m	35: lbf/in2 kPa	36: kPa lbf/in2
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 Jcal 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	π1 σ 10–99to π9.999999999 σ 1099 or 0
Number of Digits for Internal	15 digits
Calculation
Precision	In general, π1 at the 10th digit for a single
	calculation. Precision for exponential
	display is π1 at the least significant digit.
	Errors are cumulative in the case of
	consecutive calculations.

Function Calculation Input Ranges and Precision

Functions				Input Range
	DEG		0	 ∴x∴ 9 σσ109
sinx	RAD		0	 ∴x∴ 157079632.7
	GRA		0	 ∴x∴ 1 σσ1010
	DEG		0	 ∴x∴ 9 σσ109
cosx	RAD		0	 ∴x∴ 157079632.7
	GRA		0	 ∴x∴ 1 σσ1010
	DEG		Same as sinx, except when ∴x∴ = (2n–1) σσ90.
tanx	RAD		Same as sinx, except when ∴x∴ = (2n–1) σσΠ/2.
	GRA		Same as sinx, except when ∴x∴ = (2n–1) σσ100.
sin–1x	0	 ∴x∴ 1
cos–1x
tan–1x	0	 ∴x∴ 9.999999999 σσ1099
sinhx	0	 ∴x∴ 230.2585092
coshx
sinh–1x	0	 ∴x∴ 4.999999999 σσ1099
cosh–1x	1	 x 4.999999999 σσ1099
tanhx	0	 ∴x∴ 9.999999999 σσ1099

E-38