HP (Hewlett-Packard) HP 33s Calculator User Manual


 
Getting Started
1–23
File name 33s-English-Manual-040130-Publication(Edition 2).doc Page : 388
Printed Date : 2004/1/30 Size : 13.7 x 21.2 cm
Displaying Fractions
Press
¹ É
to switch between Fraction–display mode and the current
decimal display mode.
Keys: Display: Description:
12
Ë
3
Ë
8


_
Displays characters as you key them in.
Ï

Terminates digit entry; displays the
number in the current display format.
¹
É


Displays the number as a fraction.
Now add
3
/
4
to the number in the X–register (12
3
/
8
):
Keys: Display: Description:
Ë
3
Ë
4

_
Displays characters as you key them in.
Ù


Adds the numbers in the X– and
Y–registers; displays the result as a
fraction.
¹
É

Switches to current decimal display
format.
Refer to chapter 5, "Fractions," for more information about using fractions.
Messages
The calculator responds to certain conditions or keystrokes by displaying a
message. The
â
symbol comes on to call your attention to the message.
To clear a message, press
Å
or
~
.
To clear a message and perform another function, press any other key.
If no message appears but
â
does, you have pressed an inactive key (a key that
has no meaning in the current situation, such as
3
in Binary mode).
All displayed messages are explained in appendix F, "Messages".