© 1999 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-30X ÙS: A Guide for Teachers
41
Equation Operating System
EOS
1
(first)
Expressions inside D E.
2
Functions that need a E and precede the
expression, such as the >, A, or
%
’
menu items
.
3
Functions entered after the expression, such as
F and angle unit modifiers (¡, ¢, £, r, g).
4
Fractions.
5
Exponentiation (G) and roots (%
¡
)
.
6
Negation (M).
7
Permutations (nPr), and combinations (nCr).
8
Multiplication, implied multiplication, and division.
9
Addition and subtraction.
10
Conversions (%
š
,
%
“
, and
8DMS)
.
11
(last)
<
completes all operations and closes all
open parentheses
.