© 1999 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-30X
Ù
S: 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
8
DMS)
.
11
(last)
<
completes all operations and closes all
open parentheses
.