Casio fx-991ES User Manual

E-65

• The values are based on ISO Standards (1992) and CODATA

Recommended Values (1998). For details, see  

<#114>.

Appendix <#115> and <#116>

Perform all of these examples in the COMP Mode (N1).

The calculator’s built-in metric conversion commands make it simple
to convert values from one unit to another. You can use the metric
conversion commands in any calculation mode except for BASE-N
and TABLE.
To recall a metric conversion command, press 18(CONV). This
displays the metric conversion command menu. Input the two-digit
number that corresponds to the metric conversion you want to recall.

See 

 Appendix   <#117> for a list of all of the metric conversion

commands and conversion formulas.
• Conversion formula data is based on the “NIST Special Publication

811 (1995)”.

* “cal” uses the NIST value at 15

°C.

Appendix <#118> to <#120>

Perform all of these examples in the COMP Mode (N1).

k Calculation Priority Sequence

The calculator performs calculations according to a calculation priority sequence.
• Basically, calculations are performed from left to right.
• Expressions within parentheses have the highest priority.

• The following shows the priority sequence for each individual command.

1. Function with parentheses:

Pol(, Rec(

∫

(, 

/

(, 

Σ(

P(, Q(, R(

sin(, cos(, tan(, sin–1(, cos–1(, tan–1(, sinh(, cosh(, tanh(, sinh–1(, cosh–1(,

tanh–1(
log(, ln(, 

^(, 10^(, '(, 3'(

arg(, Abs(, Conjg(
Not(, Neg(
det(, Trn(
Rnd(

2. Functions preceded by values, powers, power roots:

2, 

3, 

–1, 

!, 

° ’ ”, °, r, g, ^(, 

'(

Normalized variate: 

'

 

Percent: %