HP 33S Owner's Manual

1–10 Getting Started
File name 33s-E-Manual-1008-Publication(1st).doc Page : 386
Printed Date : 2003/10/8 Size : 13.7 x 21.2 cm
RPN and ALG Keys
The calculator can be set to perform arithmetic operations in either RPN (Reverse
Polish Notation) or ALG (Algebraic) mode.
In Reverse Polish Notation (RPN) mode, the intermediate results of calculations are
stored automatically; hence, you do not have to use parentheses.
In algebraic (ALG) mode, you perform addition, subtraction, multiplication, and
division in the traditional way.
To select RPN mode:
Press
¹ ä
to set the calculator to RPN mode. When the calculator is in RPN
mode, the RPN annunciator is on.
To select ALG mode:
Press
º Ú
to set the calculator to ALG mode. When the calculator is in ALG
mode, the ALG annunciator is on.
Example:
Suppose you want to calculate 1 + 2 = 3.
In RPN mode, you enter the first number, press the
Ï
key, enter the second
number, and finally press the arithmetic operator key:
Ù
.
In ALG mode, you enter the first number, press
Ù
, enter the second number, and
finally press the
Ï
key.
RPN mode ALG mode
1
Ï
2
Ù
1
Ù
2
Ï
In RPN mode and algebraic mode, the results of all calculations are listed.
However, in RPN mode only the results are listed, not the calculations.

HP 33S Specifications

General

Type	Scientific
Form factor	Pocket
Product color	Silver
Digits	10 digits
Display number of lines	2 lines
Keyboard type	Alphanumeric
Menus and prompts	Yes

Weight and Dimensions

Dimensions (WxDxH)	157 x 16 x 81 mm