HP 33S, User Manual

Page: 106 / 388

6–14
Entering and Evaluating Equations
File name 33s-English-Manual-040130-Publication(Edition 2).doc Page : 388
Printed Date : 2004/1/30 Size : 13.7 x 21.2 cm
Order Operation Example
1 Functions and Parentheses

,

2 Power (
)
)

3 Unary Minus (
z
)

4 Multiply and Divide

,

5 Add and Subtract

,

6 Equality

So, for example, all operations inside parentheses are performed before
operations outside the parentheses.
Examples:
Equations Meaning

a
×
( b
3
) = c

( a
×
b )
3
= c
 a + ( b / c ) = 12
 ( a + b ) / c = 12

[%CHG (( t + 12), ( a – 6)) ]
2
You can't use parentheses for implied multiplication. For example, the expression
p (1 – f ) must be entered as

, with the "

" operator inserted between P
and the left parenthesis.