Texas Instruments TI-73 EXPLORER - Manual (Page 336)

330
Appendix B: Reference Information
73B-ENG.DOC Appx B Reference Information, English Julie Hewlett Revised: 07/14/98 3:58 PM Printed:
05/19/99 9:04 AM Page 330 of 20
Equation Operating System (EOS
é
)
The Equation Operating System (EOS) defines the order in
which functions and expressions are entered and evaluated on
the TIN73. Within a priority level, EOS evaluates functions from
left to right and in the following order.
1 Calculations within parentheses.
2 Single-argument functions that precede the argument,
such as ‡ (
,
sin(
, or
log(
.
Multi-argument functions, such as
min(2,3)
, are
evaluated as they are encountered.
3 Functions that are entered after the argument, such as
!
,
¡ , r , and conversions.
4 Powers and roots, such as 2 5 or 5 ‡32.
5 Permutations (
nPr
) and combinations (
nCr
).
6 Multiplication, implied multiplication, and division.
7 Addition and subtraction.
8 Relational functions, such as
>
or { .
9 Logic operator
and
.
10 Logic operator
or
.