HP 33S - Page 106

6–14 Entering and Evaluating Equations
File name 33s-E-Manual-1008-Publication(1st).doc Page : 386
Printed Date : 2003/10/8 Size : 13.7 x 21.2 cm
Order Operation Example
1 Functions and Parentheses

,

2 Unary Minus (
z
)

3 Power (
)
)

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.